Added detection for the new M (aka MUMPS) language.
Improved M detection to be more specific.
Use Common Lisp lexer for M syntax highlighting, which gives pretty good results.
Improved comment.
Fixed M lexer name.  Merged with upstream's latest changes.
Added detection for the Pike language:

http://pike.ida.liu.se/
Added REALbasic language.
Update vendor.yml to include jQuery UI
Improve detection for ASP.NET validation jQuery plugins
Added .ccxml, .grxml, .scxml, .vxml to the XML syntax group
lib/linguist/vendor.yml: ignore Debian packaging

This should prevent files like debian/$package.cron.d from being recognized as D source.
testcase for 90f1ba9
Detection added for Forth & Omgrofl
Forth & Omgrofl lexers set to Text Only
Forth extensions sorted
Add .pd_lua extension for Lua

.pd_lua is the required extension for any Lua files written to directly communicate with Puredata, via the pdlua library.
adding Lasso language and sample files
Lasso extentions sorted
Lasso lexer name added
Add more samples with listed extensions.  Remove extension specification.  Clarify comments at top of languages.yml.