CI step for samples
Merge branch 'master' of github.com:github/linguist
Assign a bunch more TextMate scopes
Merge pull request #1630 from github/even-more-tmscopes

Assign a bunch more TextMate scopes
Add ProGuard config files to vendored files
Merge pull request #1633 from pchaigno/proguard

ProGuard config files as vendored
Add FORTRAN samples.
Add Forth extensions .f and .for; add heuristics for Forth and FORTRAN.