Zom Android 15.7.0-RC-2

491e8dc (HEAD -> master, tag: 15.7.0-RC-2, origin/master, origin/HEAD) update build to 1570030
f67538d remove bookmark function now since it can crashes
fdea3e9 (dev/master, dev_latest_fixes) Merge branch 'master' of github.com:zom/Zom-Android into dev_latest_fixes
ef2126d (tag: 15.7.0-RC-1) update build to 1570020
09b10be update behavior of primary activities
8a07f35 remove AES utility that is unused
a0972ed update SDKs
60b794e no one calls AES code anymore so remove it
ea4347f make sure to close all streams
b4480f7 fixes for background operation and memory clearing
366ee0c add separate value for XMPP packet timeout
b820fae don't let multiple calls broadcast at the same time
89e7542 make sure we close the exif stream
b96f6cf remove strictMode settings no longer allowed
ea3f803 fix ellipsis script
fab70e7 update gradle version
d565ae3 update build depenencies
9444ba8 update localized strings
338a6ac update to smack 4.3.1#
0cbed21 delete .fdroid.yml
e0f944c (tag: 15.7.0-beta-2, public/master) update build version to 1570020
5925860 remove unused service
a99b11d remove unused plugin classes
9c804d8 always start foreground immediately. it is required.
a8b83f3 only used advancednetworking if the user selects it
75b1b32 (tag: 15.7.0-beta-1) update version code to 1570010
b7f121c Merge branch 'N-Pex-xep363'