be less strict about version in unit tests
bump version for Hackage
make tests depend on latest GLFW-b, not any particular version
bump version for Hackage
Callback scheduling: C callbacks only schedule Haskell code to run later, to avoid potential Haskell exceptions in C callback context

fix #37
bump version for Hackage
fix #37 (Oops: Forgot setKeyCallback)
Merge pull request #38 from Peaker/master

Callback scheduling: C callbacks only schedule Haskell code to run later...
bump version for Hackage
More Exception-safe CBs (Don't miss next scheduled CBs if any one raises an exception)
bump version to 1.4.6
Merge pull request #1 from bsl/master

testing