Remove Acceptance Auth in their current form #67
Introduce a DATABASE constant #67
Environment Variables to run Acceptance specs #67

* Make Port configurable via environment variable
* Optional authentication including setting username and password
Set up on Auth Specs on Travis. Closes #67

* Tiny Env Build Matrix
* ArangoDB.sh has optional authentication
Merge pull request #67 from triAGENS/acceptance-specs

Run Auth Integration on Travis