move LOGGING after the localsettings import
update nvd3, additional chart config options
move nv.d3.css to lib folder
fix css location
docs in chart models
fix pie chart bug in nvd3
addition of ctable submodule
Merge branch 'master' into nvd3

Conflicts:
	corehq/apps/reports/commtrack/standard.py
delete unused code
catch and display error I was getting
minor tweaks
update nvd3 lib
Merge branch 'master' into ctable
fix document update conlflicts when opening multiple vellum pages after a multimedia change
fix longstanding typo causing subcase paths not to be validated for build + test
really quick and not the best place to put a more friendly login message.

without having an explicit way to detect session expiration in our login/logout redirection, using next param as way of determining intent.

on an expired or nonexistent session, next= will show up on url redirect.
add some extra debugging info for a issue with attachments
Let install.sh output run free to avoid travis timeouts
Default to JSON a different way that allows XML while being browser friendly
Add commented setting for how we might want to configure tastypie in the future