friend aliases take 1
chat aliases
Merge branch 'friendalias' into keychain

Conflicts:
	res/values/strings.xml
	src/com/twofours/surespot/activities/MainActivity.java
Merge branch 'master' into keychainalias

Conflicts:
	res/values/strings.xml
fix alias indexing
notify view pager when friend alias changes
sort chat pager on remote friend alias change
use natural sort ordering to match friend list
check for null selection callback
allow spaces in alias
pass context to getidentity so get prefs doesn't puke
use same sort code
show alias on key fingerprint dialog
show alias on delete friend confirmation
remove friend image and alias functionality
bump version 53