Added missing requirejs filter documentation
"Merge pull request #342 from noirbizarre/requirejs-doc\n\nAdded missing requirejs filter documentation"
Add slimit filter based on the cssmin filter.
Add tests for slimit filter.
Add slimit in builtin filters documentation.
Add slimit to development requirements so tests are not just skipped.
"Merge pull request #353 from fladi/slimit\n\nSupport Slimit as a JS filter"