First attempt at support for adding and removing users from nick lists during netsplits.
Fix duplicate initialization of userAwayBitmap in BufferFragment.java.
Make each Network observe its own statusBuffer.
This fixes the issue where new messages in a status buffer did not cause the network name in BufferFragment to change color as it should.
Allow for installation on SD card.
Set query buffers as active when the user is away too.
I missed this condition in my previous bugfix for query buffers, which caused the icon to show as "away" but the icon as "parted."
Fix several more crash bugs.
These were caused by attempting to use nick completion with no buffer open and deleting buffers/networks while Quasseldroid was in the background.
Merge branches 'duplicateuserawaybitmap', 'netsplit', 'nickcompletecrashbugfix', 'querybufferawaybugfix', 'sdcard' and 'statusbuffercolorfix'