diff --git a/doc/categories-imagemap.html b/doc/categories-imagemap.html
deleted file mode 100644
index 31f01eef..00000000
--- a/doc/categories-imagemap.html
+++ /dev/null
@@ -1,53 +0,0 @@
-<map id="categories" name="categories">
-<area shape="poly" href="#Text" title="Text" alt="" coords="690,23 688,17 685,12 679,8 672,5 664,4 656,5 649,8 643,12 640,17 638,23 640,29 643,34 649,38 656,41 664,42 672,41 679,38 685,34 688,29"/>
-<area shape="poly" href="#Punct" title="Punct" alt="" coords="657,95 656,89 652,84 646,80 638,77 629,76 620,77 612,80 606,84 602,89 600,95 602,101 606,106 612,110 620,113 629,114 638,113 646,110 652,106 656,101"/>
-<area shape="poly" href="#Phr" title="Phr" alt="" coords="726,95 725,89 721,84 715,80 708,77 700,76 692,77 685,80 679,84 676,89 675,95 676,101 679,106 685,110 692,113 700,114 708,113 715,110 721,106 725,101"/>
-<area shape="poly" href="#PConj" title="PConj" alt="" coords="658,167 656,162 652,156 645,152 637,150 628,149 619,150 610,152 604,156 600,162 598,167 600,173 604,179 610,183 619,185 628,186 637,185 645,183 652,179 656,173"/>
-<area shape="poly" href="#Utt" title="Utt" alt="" coords="726,167 725,162 721,156 715,152 708,150 700,149 692,150 685,152 679,156 676,162 675,167 676,173 679,179 685,183 692,185 700,186 708,185 715,183 721,179 725,173"/>
-<area shape="poly" href="#Voc" title="Voc" alt="" coords="794,167 793,162 789,156 784,152 777,150 769,149 761,150 754,152 748,156 744,162 743,167 744,173 748,179 754,183 761,185 769,186 777,185 784,183 789,179 793,173"/>
-<area shape="poly" href="#Imp" title="Imp" alt="" coords="657,240 656,234 652,229 647,225 640,222 632,221 624,222 617,225 611,229 607,234 606,240 607,246 611,251 617,255 624,258 632,259 640,258 647,255 652,251 656,246"/>
-<area shape="poly" href="#S" title="S" alt="" coords="726,240 725,234 721,229 715,225 708,223 700,222 692,223 685,225 679,229 676,234 675,240 676,245 679,250 685,254 692,257 700,258 708,257 715,254 721,250 725,245"/>
-<area shape="poly" href="#QS" title="QS" alt="" coords="870,240 868,234 865,229 859,225 852,222 844,221 836,222 829,225 823,229 819,234 818,240 819,246 823,251 829,255 836,258 844,259 852,258 859,255 865,251 868,246"/>
-<area shape="poly" href="#Tense" title="Tense" alt="" coords="521,312 519,306 515,301 509,297 501,294 492,293 483,294 475,297 469,301 464,306 463,312 464,318 469,323 475,327 483,330 492,331 501,330 509,327 515,323 519,318"/>
-<area shape="poly" href="#Ant" title="Ant" alt="" coords="589,312 588,306 584,301 578,297 571,294 563,293 555,294 548,297 542,301 539,306 538,312 539,318 542,323 548,327 555,330 563,331 571,330 578,327 584,323 588,318"/>
-<area shape="poly" href="#Pol" title="Pol" alt="" coords="657,312 656,306 652,301 647,297 640,294 632,293 624,294 617,297 611,301 607,306 606,312 607,318 611,323 617,327 624,330 632,331 640,330 647,327 652,323 656,318"/>
-<area shape="poly" href="#Cl" title="Cl" alt="" coords="726,312 725,306 721,301 715,297 708,294 700,293 692,294 685,297 679,301 676,306 675,312 676,318 679,323 685,327 692,330 700,331 708,330 715,327 721,323 725,318"/>
-<area shape="poly" href="#ListS" title="ListS" alt="" coords="798,312 797,306 793,301 787,297 779,294 771,293 762,294 754,297 748,301 745,306 743,312 745,318 748,323 754,327 762,330 771,331 779,330 787,327 793,323 797,318"/>
-<area shape="poly" href="#Conj" title="Conj" alt="" coords="867,312 866,306 862,301 856,297 849,294 841,293 833,294 826,297 820,301 816,306 815,312 816,318 820,323 826,327 833,330 841,331 849,330 856,327 862,323 866,318"/>
-<area shape="poly" href="#QCl" title="QCl" alt="" coords="945,312 943,306 940,301 934,297 927,294 919,293 911,294 904,297 898,301 895,306 893,312 895,318 898,323 904,327 911,330 919,331 927,330 934,327 940,323 943,318"/>
-<area shape="poly" href="#NP" title="NP" alt="" coords="270,384 269,379 265,373 260,369 252,366 244,366 237,366 229,369 224,373 220,379 219,384 220,390 224,395 229,400 237,402 244,403 252,402 260,400 265,395 269,390"/>
-<area shape="poly" href="#VP" title="VP" alt="" coords="636,384 634,379 631,373 625,369 618,366 610,366 602,366 595,369 589,373 585,379 584,384 585,390 589,395 595,400 602,402 610,403 618,402 625,400 631,395 634,390"/>
-<area shape="rect" href="#Adv" title="Adv" alt="" coords="702,367,753,401"/>
-<area shape="poly" href="#Predet" title="Predet" alt="" coords="65,457 63,451 59,446 52,441 44,439 34,438 25,439 16,441 10,446 5,451 4,457 5,462 10,468 16,472 25,475 34,475 44,475 52,472 59,468 63,462"/>
-<area shape="poly" href="#Pron" title="Pron" alt="" coords="133,457 132,451 129,446 123,441 116,439 108,438 99,439 92,441 86,446 83,451 82,457 83,462 86,468 92,472 99,475 108,475 116,475 123,472 129,468 132,462"/>
-<area shape="rect" href="#PN" title="PN" alt="" coords="150,440,202,474"/>
-<area shape="poly" href="#Det" title="Det" alt="" coords="270,457 269,451 265,446 260,441 252,439 244,438 237,439 229,441 224,446 220,451 219,457 220,462 224,468 229,472 237,475 244,475 252,475 260,472 265,468 269,462"/>
-<area shape="poly" href="#CN" title="CN" alt="" coords="339,457 337,451 334,446 328,441 321,439 313,438 305,439 298,441 292,446 289,451 287,457 289,462 292,468 298,472 305,475 313,475 321,475 328,472 334,468 337,462"/>
-<area shape="poly" href="#ListNP" title="ListNP" alt="" coords="420,457 419,451 414,446 407,441 398,439 388,438 378,439 369,441 362,446 358,451 356,457 358,462 362,468 369,472 378,475 388,475 398,475 407,472 414,468 419,462"/>
-<area shape="poly" href="#AdV" title="AdV" alt="" coords="489,457 488,451 484,446 479,441 471,439 463,438 455,439 448,441 442,446 439,451 437,457 439,462 442,468 448,472 455,475 463,475 471,475 479,472 484,468 488,462"/>
-<area shape="rect" href="#V" title="V,V2,V3,V*,V2*" alt="" coords="506,440,616,474"/>
-<area shape="poly" href="#AP" title="AP" alt="" coords="685,457 684,451 680,446 674,441 667,439 659,438 651,439 644,441 639,446 635,451 634,457 635,462 639,468 644,472 651,475 659,475 667,475 674,472 680,468 684,462"/>
-<area shape="poly" href="#Subj" title="Subj" alt="" coords="753,457 752,451 749,446 743,441 736,439 728,438 720,439 713,441 707,446 703,451 702,457 703,462 707,468 713,472 720,475 728,475 736,475 743,472 749,468 752,462"/>
-<area shape="poly" href="#ListAdj" title="ListAdj" alt="" coords="837,457 836,451 831,446 824,441 814,439 804,438 794,439 784,441 777,446 772,451 770,457 772,462 777,468 784,472 794,475 804,475 814,475 824,472 831,468 836,462"/>
-<area shape="poly" href="#Art" title="Art" alt="" coords="90,529 89,523 85,518 80,514 73,511 65,510 57,511 50,514 44,518 40,523 39,529 40,535 44,540 50,544 57,547 65,548 73,547 80,544 85,540 89,535"/>
-<area shape="poly" href="#Quant" title="Quant" alt="" coords="166,529 165,523 161,518 154,514 146,511 137,510 128,511 120,514 113,518 109,523 108,529 109,535 113,540 120,544 128,547 137,548 146,547 154,544 161,540 165,535"/>
-<area shape="poly" href="#Num" title="Num" alt="" coords="237,529 235,523 232,518 226,514 218,511 210,510 202,511 195,514 189,518 185,523 184,529 185,535 189,540 195,544 202,547 210,548 218,547 226,544 232,540 235,535"/>
-<area shape="poly" href="#Ord" title="Ord" alt="" coords="305,529 304,523 300,518 295,514 288,511 280,510 272,511 265,514 259,518 255,523 254,529 255,535 259,540 265,544 272,547 280,548 288,547 295,544 300,540 304,535"/>
-<area shape="rect" href="#N" title="N,N2,N3" alt="" coords="323,512,387,546"/>
-<area shape="poly" href="#RS" title="RS" alt="" coords="456,529 454,523 451,518 445,514 438,511 430,510 422,511 415,514 409,518 406,523 404,529 406,535 409,540 415,544 422,547 430,548 438,547 445,544 451,540 454,535"/>
-<area shape="poly" href="#Card" title="Card" alt="" coords="236,601 235,595 231,590 226,586 218,583 210,582 202,583 195,586 189,590 186,595 184,601 186,607 189,612 195,616 202,619 210,620 218,619 226,616 231,612 235,607"/>
-<area shape="poly" href="#Numeral" title="Numeral,Digits" alt="" coords="216,674 214,668 206,662 194,658 179,656 162,655 145,656 130,658 118,662 110,668 107,674 110,679 118,685 130,689 145,691 162,692 179,691 194,689 206,685 214,679"/>
-<area shape="poly" href="#AdN" title="AdN" alt="" coords="285,674 283,668 280,662 274,658 267,656 259,655 251,656 244,658 238,662 234,668 233,674 234,679 238,685 244,689 251,691 259,692 267,691 274,689 280,685 283,679"/>
-<area shape="poly" href="#CAdv" title="CAdv" alt="" coords="288,746 286,740 282,735 276,731 268,728 259,727 250,728 242,731 235,735 231,740 230,746 231,752 235,757 242,761 250,764 259,765 268,764 276,761 282,757 286,752"/>
-<area shape="poly" href="#RCl" title="RCl" alt="" coords="456,601 454,595 451,590 445,586 438,583 430,582 422,583 415,586 409,590 406,595 404,601 406,607 409,612 415,616 422,619 430,620 438,619 445,616 451,612 454,607"/>
-<area shape="poly" href="#AdA" title="AdA" alt="" coords="617,529 615,523 612,518 606,514 599,511 591,510 583,511 576,514 570,518 566,523 565,529 566,535 570,540 576,544 583,547 591,548 599,547 606,544 612,540 615,535"/>
-<area shape="rect" href="#A" title="A, A2" alt="" coords="634,512,685,546"/>
-<area shape="poly" href="#ListAP" title="ListAP" alt="" coords="767,529 765,523 760,518 753,514 744,511 734,510 725,511 716,514 708,518 704,523 702,529 704,535 708,540 716,544 725,547 734,548 744,547 753,544 760,540 765,535"/>
-<area shape="poly" href="#IP" title="IP" alt="" coords="895,384 894,379 890,373 885,369 877,366 870,366 862,366 854,369 849,373 845,379 844,384 845,390 849,395 854,400 862,402 870,403 877,402 885,400 890,395 894,390"/>
-<area shape="poly" href="#IAdv" title="IAdv" alt="" coords="966,384 965,379 961,373 955,369 947,366 939,366 931,366 923,369 917,373 913,379 912,384 913,390 917,395 923,400 931,402 939,403 947,402 955,400 961,395 965,390"/>
-<area shape="poly" href="#ClSlash" title="ClSlash" alt="" coords="1050,384 1048,379 1043,373 1036,369 1026,366 1016,366 1006,366 996,369 989,373 984,379 982,384 984,390 989,395 996,400 1006,402 1016,403 1026,402 1036,400 1043,395 1048,390"/>
-<area shape="poly" href="#IDet" title="IDet" alt="" coords="906,457 904,451 901,446 895,441 888,439 880,438 872,439 865,441 859,446 856,451 854,457 856,462 859,468 865,472 872,475 880,475 888,475 895,472 901,468 904,462"/>
-<area shape="poly" href="#VPSlash" title="VPSlash" alt="" coords="1052,457 1050,451 1045,446 1037,441 1027,439 1016,438 1005,439 995,441 987,446 982,451 980,457 982,462 987,468 995,472 1005,475 1016,475 1027,475 1037,472 1045,468 1050,462"/>
-<area shape="poly" href="#IQuant" title="IQuant" alt="" coords="912,529 910,523 906,518 899,514 890,511 880,510 870,511 861,514 854,518 850,523 848,529 850,535 854,540 861,544 870,547 880,548 890,547 899,544 906,540 910,535"/>
-<area shape="poly" href="#RP" title="RP" alt="" coords="456,674 454,668 451,662 445,658 438,656 430,655 422,656 415,658 409,662 406,668 404,674 406,679 409,685 415,689 422,691 430,692 438,691 445,689 451,685 454,679"/>
-</map>