Add the Persons tab.

Fix refresh to only update values which have changed.  This prevents
a loop updating values that appear in the UI and have 'change' listeners
on them.

Make sure the convert_song_ratings migration also puts the triggers in.
Add a profile editor form and make the name in the navigation bar
a button which shows the profile editor.
Add a section to show as default when no tabs are selected.
Suppport somewhat secure password changes on the server side.

Clean up a bunch of commented out and useless code.
Add the change password form and supporting infrastructure.