server: add updateTags message to update db
edit tags button appends a lol to the song name
edit tags dialog can edit some tags
edit dialog edits all the tags
obstruct hotkeys in the edit tags dialog
refactor db props listings
server: parse updateTags messages more carefully
client: fix not stopping keyboard propagation for text boxes
client: code cleanup
Merge branch 'master' into edit-tags

Conflicts:
	src/client/app.js
client code cleanup
update music-library-index to fix library selection bug