Incorrect work rally info find for SLA

If you type 'rally info find <query>' rally will suggest us docs that
 will be match by query. Even if you have one typo. otherwise it sugest
 you list of docs that you are possibly looking for. But if you type
'rally info find failure_rate' there output would be: "Failed to find
any docs for query: 'failure_rate'". Instead there must be information
about SLA(failure_rate): "Failure rate minimum and maximum in percents.".

Change-Id: Ie6c59e4091cddd8f5e81e2123cad1367b397a9b6
Closes-bug: 1399675
Updated from global requirements

Change-Id: Ib54923c2562f929639664b0098c1735ba1e40504
Merge "Updated from global requirements"
Add cinder stress scenario: nested snapshots

This scenario creates volumes and snapshots chain with custom nested
level:
1. Create volume
2. Create snapshot
3. Create volume from snapshot
... and so on

Change-Id: I4be5bb9435f0df5e02dfa3eca6f3e764c0786c55
Merge "Add cinder stress scenario: nested snapshots"
Use HTTPS to fetch external js resources

When putting a generated html on https capable webservers, external
libraries like AngularJS will be blocked by web browser as mixed content
of http/https. For more detail, please refer to:
https://developer.mozilla.org/docs/Security/MixedContent/How_to_fix_website_with_mixed_content

Change-Id: Ied2e74b29d6c2b303cafdf71fb97bdb5460f400a
Fix the world (heat role was remove from devstack)

This patch removes "roles" context from heat scenarios
cause they are not used now

Change-Id: Id5d404a4e17e1e50cd0b6783384b864c81015713
Merge "Use HTTPS to fetch external js resources"
WIP Context tenants refactoring

  Optimize tenants and their resources in context.
  Implement tenant related resources tree with tenant
  as root.

Change-Id: I974f3a02eeade3de6f6208642fa593832f7c62d9