Merge pull request #48 from cyrille-leclerc/master

Upgrade docs to version 1.0.6
Adding a Graphite HTTP Writer for use with a HTTP Proxy in front of Graphite (https://answers.launchpad.net/graphite/+question/213436)
Migrating from Apache HttpClient to java.net.URL
Cleaning code following Cyrille Leclerc comments
Merge pull request #49 from simonmazas/master

Adding a HTTP writer for Graphite