Zom Android 15.6.0-beta-4

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
78357fe update to 1560014