Detect minified CSS files
Merge minified files detecting methods.
Use space rate to distinguish minified files.

Minified JS files usually contain less than 2% spaces, while minified
CSS files may contain about 4% spaces. However, an unminified CSS file
may also have as low as 6% spaces, especially when it includes some
resources inline. Consequently, the division might not be appreciate
for CSS files. Even though, it will only mis-recognize a normal file
as minified for a few special cases.
Add samples and tests for minified CSS detection.
Add Erlang rebar escript bundles to vendor.yml

Fixes #236
Add '.rbxs' extension for Lua files
add COBOL language support
COBOL comes before Clojure and extensions must be sorted
COBOL: move up in the sort order
Update languages.yml

Added .podsl extension for Common Lisp language
change css color representing erlang to slightly less horrendous
color
Added support for LFE (Lisp Flavored Erlang).
Fixed typo (removed capitalization).
Exclude LICENSE files
Some space here
Better Python script support; update samples.json
Merge pull request #567 from github/workspace

Better Python script support; update samples.json
Bump to 2.8.0
Even more Python script support
Bump to 2.8.1