Fix storage tests after notification patch merging

Also small refactoring for notification staff was made

Change-Id: If38173fba9e5c2847ea9d8f8d4123e49f152d27a
Update requirements file matching global requ and add the six module

Change-Id: I43c00bf694084ac927a0dddcba5ee40e5a28da00
Merge "Fix storage tests after notification patch merging"
Add notifications to streaming API

Change-Id: I628505cae2de21dd5ac435bad41c29f882bc39fa
Adds tempest tests on list tables

Closes-bug: #1332053
Change-Id: I8cf5de206e3385e029bcdb98055fca1c7aee7d4c
Merge "Adds tempest tests on list tables"
Add installation guide

Add installation instruction to admin guide

Partially implements blueprint: magnetodb-documentation

Change-Id: I89a724ec024f4ca07fd59a90355083b7e0d7e759