Adds health endpoint for Rackspace DNS Closes-Bug: 1402805

Closes-Bug: 1402805

Change-Id: I5b9f7ee9df3156de1a2d4b213e37afb57f271872
Conditional delete of flavor in test tearDown

This patch fixes a bug where the test tearDown was deleting flavor
that was not created by the test.

Change-Id: If658f1c87d965b46a1b20ba9ee86b86e2d222fae
Reducing the "unreaped" processes
Closes-Bug: 1404988

Change-Id: I34f8ef0c3a0d11e7f08ea67824477d5cf9b5dac0
Fixes update_in_progress bug due to missing links field

Closes-Bug: 1404989

Change-Id: I35038db5b9b54bad4fe2375b4d64e3b87a4157f5
Merge "Fixes update_in_progress bug due to missing links field"
Merge "Reducing the "unreaped" processes Closes-Bug: 1404988"
Merge "Adds health endpoint for Rackspace DNS Closes-Bug: 1402805"
https domains for akamai driver
Closes-Bug: 1403621

Change-Id: Ibb6125dff2ee24f9c60e5d84e404f1a8007012e2
Merge "Conditional delete of flavor in test tearDown"
Merge "https domains for akamai driver Closes-Bug: 1403621"
Add API tests for purge assets

This patch adds API tests for the patch endpoint.

Change-Id: If4be2ad6330e3b05f7a08816d9b535d18481f7b1
merged