Made changes to ensure that Yagi sends a .verified as well as a .exists even
when stacktach is down.
Merge pull request #28 from anujm/stacktach_down_scenario

Stacktach down scenario
CUF handler now logs 400 status error and continues without retries
Merge pull request #29 from manalilatkar/400_error_handling

CUF handler now logs 400 status error, then continues without retrying.
Making all the changes to send nova CUF in the updated format
Merge pull request #30 from manalilatkar/updated_nova_cuf_format

Making all the changes to send nova CUF in the updated format
making changes to atom categories for cuf notification
Merge pull request #31 from manalilatkar/update_cuf_changes

making changes to atom categories for cuf notification
stacktach_ping_handler now sends the name of service along with the msg_id and AH response code to stacktach
changing the format of stacktach ping