Merge pull request #2 from att/develop

updates from origin
fixed #712 : changing windows title on renaming a notebook
Merge branch 'develop' into notebook-desc-on-tab-title
fixed #712 : changing windows title on renaming a notebook with dev sync
Merge pull request #730 from amol-jore/notebook-desc-on-tab-title

fixed #712 : changing windows title on renaming a notebook
add shutdown script

code extracted from fresh_start.sh
closes #612
Remote-tracking branch 'upstream/develop' into develop
Fixed Issue #731,

Added file type drag check for asset drag. This will fix the text drop issue where the asset overlay was popping up on dragenter.
Fixed Issue #731

added check for text drag from cell to cell and scratchpad.
Fixed Issue #731

text drag inside cell restored.
fix typo in error and deduplicate
expose current_gist from controller

we need this to create URLs (or, at least we need the gist id from it).
it seems sort of (?) reasonable, but maybe if we are acknowledging that
the controller is caching the gist, then it should be part of the
notebook model?
use the notebook.R URL instead of the github gist raw_url for the asset link

fixes #675
add ace's JavaScript webworker

this is kind of a monster at 10kloc, so we'll see if it causes
problems, but it enables cool stuff like jshint in assets

and we were getting console errors without it, so if we don't
want it, we should explicitly disable it

https://github.com/ajaxorg/ace/wiki/Syntax-validation
http://stackoverflow.com/questions/12886857/how-can-i-disable-the-syntax-checker-in-ace-editor
artifacts
Merge branch 'pr/733' into develop

Conflicts:
	htdocs/js/rcloud_bundle.min.js
fix misspelling
semi-colon & trailing whitespace
remove unneeded extra contenteditable
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