ignore ant/Android build products
add Android build system
purge debug logging to get a jar building
XMPP Resource stripping should happen outside of otr4j

To keep otr4j protocol-neutral, XMPP Resource stripping should happen only
outside of otr4j.  This removes the dependency on
info.guardianproject.otr.app.im.engine.Address.
include ChatSecure's bouncycastle from v14.0.8
AuthContextImp: add generic setter for logging
include missing "no OTR" reply string as constant