feature: git clone and opentsdb build step are proxy compliant
feature: tcollector recipe also need some proxy love
Merge branch 'proxy_compliant' into prepare_2.0
feature(Vagrantfile): remove the private network configuration
feature: provide v2.0 / next build steps + major refactoring

- split previous recipes in install/start for each component (hbase, tcollector, opentsdb)
- provide a config file for v2/next version
- provide a start command for v2/next version