Fix bug #3602 (Can't close Quick Docs via Esc after clicking in left-hand
content) -- Make non-scrolling parts of content focusable so focus stays
in widget (where we listen for Esc) rather than bubbling up to some random
part of CM that no one's listening to.
Replaced Bootstrap style with Topcoat style.
Merge branch 'master' of https://github.com/adobe/brackets into larz/modal-window-buttons
Merge branch 'master' of https://github.com/adobe/brackets into larz/modal-window-buttons
Merge branch 'master' of https://github.com/adobe/brackets into larz/modal-window-buttons
Updated based on @njx's review
Tweak
Tweak
Close hints when the cursor moves to a new hinting context
fix backspace key
Merge pull request #3603 from adobe/pflynn/fix-docs-lefthand-focus

Fix #3602 (Can't close Quick Docs via Esc after click in left-hand content)
Merge pull request #3619 from adobe/larz/modal-window-buttons

Larz/modal window buttons
Update NOTICE
small changes for code review
Merge pull request #3640 from dloverin/issue#3627

Close hints when the cursor moves to a new hinting context
Updated by ALF automation.
Merge pull request #3644 from adobe/alf

ALF Automation
Remove all image files used in Quick View unit tests
Merge pull request #3647 from adobe/rlim/remove-quick-view-images

Remove all image files used in Quick View unit tests