Added camera preview and photo preview

Bugs known: any convolution transforming can't be saved.
Possible reasons: synchronization errors.
Some bugs fixed.
Fixed bug with camera crash
Photo upload is now supported

I used apache.org libs, because it is the common solution to upload
files.
Code refactored

Deleted unused things, changed some deprecated classes.
Merge remote-tracking branch 'origin/camera' into UI

Conflicts:
	.idea/workspace.xml
	AndroidManifest.xml
	out/production/PhotoStream/PhotoStream.apk
	out/production/PhotoStream/PhotoStream.unaligned.apk
	out/production/PhotoStream/ru/example/PhotoStream/R$string.class
	out/production/PhotoStream/ru/example/PhotoStream/R.class