add gravatar to users index

resize puppet calss form, parameter tab, left tabs size.

added search puppet class parameters.

reorg in the user and settings top menus.

Add organization and location to foreman.

This feature allows foreman to provide multi location, multi tenant and
multi organizations capablities.

the idea is that resources within foreman (e.g. hosts, subnets, users,
environments etc) can belong to one or more locations and organization,...

fixed hat location on login screen.

fix minor css classes declaration.

a bunch of fixes to get functional tests running under 1.9.2

[UI] Fixed inconsistent tab naming for the initially active tab

incorrect error message shown when trying to rename the admin account