support ats2-lang
Merge pull request #30 from murasesyuka/feature/ATS2_support

support ats2-lang
Improve for ats programming language
Bump up version and update Changes
support F# language
Update document for F#
add F# sample
Merge pull request #31 from syohex/support-fsharp

Support fsharp
Add explanation about Emacs 23 support
Bump up version and update Changes
Improve fortran extension regexp
Support all F# file other than '.fsx' and '.fscript'.
Merge pull request #32 from syohex/improve-fsharp-and-fortran

Improve fsharp and fortran
Bump up version and update Changes
Update README