Merge pull request #1714 from ronnieduke/candidate

adding createCSSClass() function
FormBuilder, Import Export, Class Extension updates / etc
partial export fixes
Update api utility
Merge branch 'candidate' of github.com:blueriver/MuraCMS into candidate
Update api utility
Remove un-needed "'"
Adding js api to core
Merge branch 'candidate' of github.com:blueriver/MuraCMS into candidate
Adding js api to core
Adding js api to core
Adding js api to core
Adding js api to core
Adding js api to core
Adding js api to core
Adding js api to core
Adding js api to core
Adding js api to core
partial bundle ui cleanup
partial bundle - add rbkeys