Merge pull request #44 from PatrickDropbox/master

mv test_utils into separate submodule to reduce module dependency.
add AddMulti() client interface and implementation
Merge pull request #45 from adegtiar/memcache_add

add AddMulti() client interface and implementation
Update README.md

Adding Alex Degtiar to contributors
Add lock/unlock statement support
Add comments and use interface inheritance in Statement
Run gofmt
Add more comments
Merge pull request #46 from rajatgoel/add-lock-unlock-statements

Add lock/unlock statement support
changes
Merge pull request #47 from 4578395263256/url

Add Proxy field to ConnectionParams.
Update README.md
Fix races in memcache raw_client_test.go and mock_client.go
Merge pull request #48 from adegtiar/fix_mc_mock_race

Fix races in memcache raw_client_test.go and mock_client.go
Revert "changes"

This reverts commit abee1afc2dbcda1df923145805f0e88cafcf053f.
saving
Merge pull request #49 from 4578395263256/proxy

Add Proxy field to ConnectionParams (redo)