Switch to new options handling.

This changes lots of stuff, let me know if it broke anything.

Comments:

- We use a local hacked version of GetOpt that allows long forms of commands to start with a single dash. This breaks other parts of GetOpt. For example, arguments to short options now require a =, and does not allo pace after the option character.

- The new command parsing is currently only used for the program command line, pragmas and the arguments for the 'i' shell command.

- I made a quick hack for the options for showTerm, which currently makes it impossible to use the print style flags for cc. This will be replaced by a facility for parsing command-specific options.

- The verbosity handling is broken in some places. I will fix that in a later patch.

src-3.0/GF/Compile/Rebuild.hs

@@ -23,6 +23,7 @@ import GF.Grammar.Macros
 
 import GF.Infra.Ident
 import GF.Infra.Modules
+import GF.Infra.Option
 import GF.Data.Operations
 
 import Data.List (nub)
@@ -76,7 +77,7 @@ rebuildModule ms mo@(i,mi) = do
                        ++ [oSimple i   | i <- map snd insts] ----
 
       --- check if me is incomplete
-      let fs1 = fs_ ++ fs                            -- new flags have priority
+      let fs1 = addModuleOptions fs fs_                           -- new flags have priority
       let js0 = [ci | ci@(c,_) <- tree2list js, isInherited incl c]
       let js1 = buildTree (tree2list js_ ++ js0)
       return $ ModMod $ Module mt0 stat' fs1 me ops1 js1