add deep copy for config
add graceful error handler
Add deep copy function
add test for google failure
Merge pull request #187 from keenlabs/bug-config

Fix configuration manipulation issue
Remove 'el' argument from #prepare and #render
Updated tests and examples accordingly
Merge branch 'fix/beta-bugs' of https://github.com/keenlabs/keen-js into fix/beta-bugs
Merge config clone patch, remove faulty test
Graceful failure when google jsapi is blocked, allows visible errors
Replace uglify with yui-compressor grunt task
Update test with missed el handling
Merge pull request #189 from keenlabs/fix/beta-bugs

Improved handling of viz configs and google jsapi failure