Storage interface fixed

Now it supports projections and ordering in select_item request
Merge pull request #25 from dukhlov/master

Storage interface fixed
Startup script fixed
Merge pull request #26 from dukhlov/master

Startup script fixed
Adding MANIFEST.in for packaging
Small fixes

Fix of previous commit,
Logging configuration was fixed,
Wrong written asserts were fixed
Merge pull request #27 from denismakogon/pkg

Adding MANIFEST.in for packaging
Merge pull request #28 from dukhlov/master

Small fixes
put_item schema added
Merge branch 'master' of https://github.com/Mirantis/magnetodb
Merge pull request #29 from dukhlov/master

Put request schema added