can update event data from overflow menu
fixed some bugs with adding/editing notes on match view
removed unused imports
code cleaning
doesn't show score when match hasn't been played yet
now deletes events and associated data from background thread. Stops slight lag in UI
refresh is action bar icon. Can refresh individual match
headers for different weeks on first screen
week headers on download event screen, too
updated version number: 2.2.2
Merge branch 'dev'