more effort with heroku
more heroku config stuff.
adding railtie
asset precompile changes.
More heroku configuration:

* gem file changes
* Nixing database
* asset path fixes
Fixes #18. Menu should be alphabetical.
Adjusting for Behavior-UI#15; removed unused less files.
Removing behavior invocation from sandbox.html since that’s now in the built JS file.

* Fixes behavior-ui/behavior-ui#13.
* Fixes behavior-ui/behavior-ui#12.
* Fixes behavior-ui/behavior-ui#10.
* Fixes behavior-ui/behavior-ui#6.
* Fixes behavior-ui/behavior-ui#5.