Merge pull request #53 from bitsquare/master

Fix resource leakage
Fix resource leakage in capacity (similar to
f2152321f6e21ea7caac903ecde5717c16c3e77d)
Merge pull request #54 from bitsquare/master

Update java docs and fix typos, no functional changes
fixed resource leak: ByteBuf.release() was not called before it's
garbage-collected
improved comment
Interface binding improvments.
update to latest netty
minor changes to work with tomp2p.net
merged pull request #52
don't release the buffer yet, this is done in the
SimpleChannelInboundHandler