[stats] Need to add api handlers to analytics to be able to get fuel and openstack stat

[Andrey Sledzinskiy]

We need to extend api in analytics to be able to get fuel and openstack statistics.
We need it in system tests because current approach with ssh on host with collector and connect to db was considered as insecure.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/169750

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/170131

[OpenStack Infra (hudson-openstack)]

Change abandoned by Alexander Kislitsky (<email address hidden>) on branch: master
Review: https://review.openstack.org/170131
Reason: Wrong parent branch

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/170139

[OpenStack Infra (hudson-openstack)]

Change abandoned by Alexander Kislitsky (<email address hidden>) on branch: master
Review: https://review.openstack.org/169750
Reason: Change is not required.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/170139
Committed: https://git.openstack.org/cgit/stackforge/fuel-stats/commit/?id=74a4fec2973c01ecd7c9fb686a93d526c34b8483
Submitter: Jenkins
Branch: master

commit 74a4fec2973c01ecd7c9fb686a93d526c34b8483
Author: Alexander Kislitsky <email address hidden>
Date: Thu Apr 2 17:01:34 2015 +0300

    Json exporters for stats added

    For system tests purposes http handlers for fetching stats
    added into analytics.
    Implemented OSWLs exporters:
    - /api/v1/json/oswls/<master_node_uid>,
    - /api/v1/json/oswls/<master_node_uid>/<resource_type>
    Implemented installation info exporter:
    - /api/v1/json/installation_info/<master_node_uid>
    Implemented action logs exporter:
    - /api/v1/json/action_logs/<master_node_uid>

    Change-Id: I746b43c387c90b20c70d5160d92859b4b44998c1
    Closes-Bug: #1438228