docs/contribute fixing repos GOPATH
docs/build: info about operating systems requirements
Merge branch 'master' of github.com:globocom/tsuru into bardusco
removing internal names
docs/build: added tsuru.conf sample and some other improvements.
docs/build: getting merge easy
docs/build: merging
docs/build: added gandalf procedures and some other minor fixes
docs/build: link to client usage guide