Simplify the Proguard configuration
Simplify the Proguard configuration

Most of these are redundant specifications. Rely on the built-in Android
config and also use the optimizing configuration as well.

kruton/connectbot,alescdb/connectbot,connectbot/connectbot,iiordanov/BSSH,connectbot/connectbot,kruton/connectbot,lotan/connectbot,lotan/connectbot,kruton/connectbot,alescdb/connectbot,lotan/connectbot,iiordanov/BSSH,iiordanov/BSSH,connectbot/connectbot,alescdb/connectbot