Update pgf2.cabal, including bumping version to 2.0.0

src/runtime/haskell/pgf2.cabal

@@ -1,34 +1,51 @@
-name:                pgf2
-version:             0.1.0.0
--- synopsis:            
--- description:         
-homepage:            http://www.grammaticalframework.org
-license:             LGPL-3
---license-file:        LICENSE
-author:              Krasimir Angelov, Inari
-maintainer:          
--- copyright:           
-category:            Language
-build-type:          Simple
-extra-source-files:  README
-cabal-version:       >=1.10
+name: pgf2
+version: 2.0.0
+
+cabal-version: 1.22
+build-type: Simple
+license: LGPL-3
+license-file: LICENSE
+category: Natural Language Processing
+-- synopsis: Bindings to the C version of the PGF runtime
+-- description:
+--   GF, Grammatical Framework, is a programming language for multilingual grammar applications.
+--   GF grammars are compiled into Portable Grammar Format (PGF) which can be used with the PGF runtime, written in C.
+--   This package provides Haskell bindings to that runtime.
+homepage: https://www.grammaticalframework.org/
+bug-reports: https://github.com/GrammaticalFramework/gf-core/issues
+author: Krasimir Angelov
+-- tested-with: GHC==7.10.3, GHC==8.0.2, GHC==8.10.4
+extra-source-files:
+  CHANGELOG.md
+  README.md
 
 library
-  exposed-modules:     PGF2, PGF2.Internal,
-                       -- backwards compatibility API:
-                       PGF
-  other-modules:       PGF2.FFI, PGF2.Expr, PGF2.Type
-  build-depends:       base >=4.3, containers, pretty, array, random
-  -- hs-source-dirs:      
-  default-language:    Haskell2010
-  build-tools:         hsc2hs
-
-  extra-libraries:     pgf
-  cc-options:          -std=c99
-  c-sources:           utils.c
+  exposed-modules:
+    PGF2,
+    PGF2.Internal,
+    -- backwards compatibility API:
+    PGF
+  other-modules:
+    PGF2.FFI,
+    PGF2.Expr,
+    PGF2.Type
+  build-depends:
+    base >= 4.3, -- >= 4.9.1 && < 4.15,
+    containers, -- >= 0.5.7 && < 0.7,
+    pretty, -- >= 1.1.3 && < 1.2,
+    array,
+    random
+  default-language: Haskell2010
+  build-tools: hsc2hs
+  extra-libraries: pgf
+  cc-options: -std=c99
+  c-sources: utils.c
 
 test-suite basic
-  type:       exitcode-stdio-1.0
-  main-is:    tests/basic.hs
-  default-language:    Haskell2010
-  build-depends: base, HUnit, pgf2
+  type: exitcode-stdio-1.0
+  main-is: tests/basic.hs
+  default-language: Haskell2010
+  build-depends:
+    base,
+    HUnit,
+    pgf2 >= 2.0.0