Starting work on 0.7: ArangoDB 1.2 only

The break of a new dawn. Watch out.
A refreshed README

Some more hints and links. So every one knows where to go!
A more concise CONTRIBUTING file

The old one was a little bit too long and in parts outdated
Set acceptance specs that are failing due to API changes to pending #34
Run integration tests on Travis on 1.2 Beta 3 #34
Adjusting Collection Fixtures for new version #34
Adjusting Documents Fixtures for new version #34
Adjusting Cursor Fixtures for new version #34
Treat ID and Keys as Strings and use them in the 1.2 way #34

* Acceptance tests touching this work now
Treat Revision as String #34
Treat Cursor ID as a String #34
Refactoring: Document#initialize
Refactoring: Collection#initialize
Code Style adjustments
Adjusted to the new Index handling in 1.2 #34
Support for the new figures #34
Support for Volatile Collections. Closes #34

* You can now create volatile collections
* You can check, if a collection is volatile
Trying out Build Heroes
See Bug #34
Refactoring and adjusting metrics accordingly