Refactor GF shell modules to improve modularity and reusability

+ Move type CommandInfo from GF.Command.Commands to a new module
  GF.Commands.CommandInfo and make it independent of the PGF type.
+ Make the module GF.Command.Interpreter independent of the PGF type and
  eliminate the import of GF.Command.Commands.
+ Move the implementation of the "help" command to its own module
  GF.Command.Help

1 files changed, 2 insertions, 0 deletions

diff --git a/gf.cabal b/gf.cabal
index eb764690e..ad2cae07e 100644
--- a/gf.cabal
+++ b/gf.cabal
@@ -161,7 +161,9 @@ Library
 
     DarcsVersion_gf
     GF.Command.Abstract
+    GF.Command.CommandInfo
     GF.Command.Commands
+    GF.Command.Help
     GF.Command.Importing
     GF.Command.Interpreter
     GF.Command.Messages