Init commit & started refactoring
Updated docs
Added basic MongoDB provider
Rewritten amazon example
Updated docs & structure in older providers
Improved annotations + storage class
Finally written core-structure. Looks better.
Removed callbacks from constructor /antipattern/
Finally was able to finish MongoDB!

Thanks to the changes done before to our init process.
Added MongoDB samples that work
Updated example (testing multiple connections check)
Mongo remove method, docs update + callbacks tweaks
Test change due to different callback pattern
Merge pull request #6 from keystonejs/new-structure

New structure