adding buildCSSUrls and buildJSUrls as low-level apis to build url and combo urls based on modules names. refactor getSeedUrls() to use those methods under the hood.
adding unit test for PR #11
review feedback
adding history entry
fixing typos
Merge pull request #17 from caridy/css-modules

adding buildCSSUrls and buildJSUrls as low-level apis to build url and combo urls based on modules
bumping version 0.5.5
updating docs for 0.5.5
Update CONTRIBUTE.md

adding release checklist
adding support for cssproc
adding docs
adding docs
review feedback
update yui to 3.11.0
add history entry of yui version update
adding unit tests for the new cssproc feature. organizing the tests better
bumping version 0.5.6
update yui version
Merge pull request #19 from lzhan/updateyui

update yui to 3.11.0
update yui version for example