allow use the property "entries" to handle multiple css files
fixing some tests
update documentation
Merge remote-tracking branch 'upstream/master' into allow_multi_css_files

Conflicts:
	css.js
change some function names
correct README file and add a test for malformed json error parsing
Merge remote-tracking branch 'upstream/master' into allow_multi_css_files

Conflicts:
	test.js
Merge remote-tracking branch 'upstream/master' into allow_multi_css_files
- remove semicolons
- fix for use of rework-vars
- fix for test, removing tabulations
- fix for test, removing tabulations
Merge remote-tracking branch 'upstream/master' into allow_multi_css_files

Conflicts:
	css.js
	test.js
- merge from master, add expect  for 'should not error'
Merge pull request #27 from fcaballero/allow_multi_css_files

Allow multi css files and externalize variables