Add support for using a socks proxy to talk to Tor Onion Proxies (OP)

Update dependencies to new couchbase artifact names
Hacked our EktorpCreateClientBuilderTests to work with a static Tor OP.
Deleted ThaliUrlConnection class and related tests since we don't want to
  support Tor enabling it.
Added support for a SOCKS proxy to our client code so we can talk to the
  TOR OP
Centralized our Apache HTTPClient code into Universal since we needed to
  access some config options we couldn't get to through Ektorp's nifty
  Apache config class
Updated our SLF4J dependencies so we don't need our custom release anymore
Minor Stuff
Cleaning up some logging code
Merge pull request #2 from yaronyg/torclient

Add support for talking to Tor via a Socks Proxy
Merge branch 'master' of https://github.com/stefangordon/thali-1
Merge branch 'master' into html5_app_work