fix nginx sockets
remove uri for proxy pass
switch to pserve
fix tests
Merge branch 'develop' of github.com:universalcore/unicore-mc into feature/issue-19-fix-nginx-proxy_pass-sockets

Conflicts:
	unicoremc/manager.py
Merge pull request #19 from universalcore/feature/issue-19-fix-nginx-proxy_pass-sockets

fix nginx proxy_pass sockets