Zom Android 15.6.0-beta-6

92927f7 updated to build 1560017
828f21c memory and performance improvements for camera and proofmode
45ae7e0 update build to 1560016
b76f61a improve display of proof mode
32e8e41 change group defaults
c241398 more progress in nearby sharing
ab0d15e added nearby photo sharing tied to usernames, chats
c97e54b update strings for topgyal bot
a7f2d62 implement new topgyal search bot
9ed3db3 adding in local libs for latest smack
80b613e update gradle
4cdd5f0 update default http proxy port
ed7606f remove shadowsocks, move to port forwarding for advanced networking
3a9b004 if key is null or missing, then it is a fresh install
3f1cd47 update to smack-4.3-rc2
13a74ef enable advanced networking as needed if server is unreachable
835c96e automigrate to any available server from our list
0cbd840 improve use of Server metadata - if DNS lookup not used, see if we have server info in our local config
ed839c7 tweak custom typeface handling
69375f6 add boot event service listing
cbb1fba improve handling of boot event
47c320e update web icon
66ed0e4 update launcher icon