add socketio listener for job classifications
code cleanup
make a unique subscription for each repo
fixup! make a unique subscription for each repo
classification delete partially working
fixup! fixup! make a unique subscription for each repo
fixup! fixup! fixup! make a unique subscription for each repo
delete classification working.  unstar if no classifications left
Merge pull request #49 from mozilla/classification-event-listener

add socketio listener for job classifications
add job filter pin all button
merged mauro's changes.  pin all working.
added keyboard command behavior
merged