from bg/reconnect_evaluators
Whitespace
Move toggle-menu above code input

Change from previous solution for layering

Fixes #951
Make `toggleCellMenu` method more flexible
Add `.advanced-only` utility class
Add language chooser in advanced mode

Fixes #902
Turn move, delete, and toggle cell buttons back on in advanced mode
merge
Fixed object serialization exceptions.
Added autocomplete for 'beaker' in Groovy
Merge pull request #967 from twosigma/ildipo/minorstuff

Fixed object serialization exceptions.
Merge pull request #966 from twosigma/spot/reconnect

Spot/reconnect
Merge pull request #964 from twosigma/jb/fixes

UI Bug Fixes
expose evaluator id to output display
Merge pull request #971 from twosigma/ildipo/minorstuff

expose evaluator id to output display
Merge pull request #975 from twosigma/jb/more-fixes

Display current filename in header
Whitespace
Make childScope off of current scope instead of rootScope

Allows us to have nested scopes of directives,
specifically broadcasting from parent scopes.
Trip angular-datatables watcher (and rerender) when output is expanded

Fixes #906