Fix broad regular expressions for database and rabbitmq task names

[Matthew Mosesohn]

Detailed bug description:
 Many tasks depend on a regular expression like /(primary-)?database/. This adds unnecessary dependencies to unrelated possible tasks defined pre/post deployment or in a plugin.

This should be fixed by updating the expressions to /^(primary-)?database$/
Steps to reproduce:
 <put your information here>
Expected results:
 <put your information here>
Actual result:
 <put your information here>
Reproducibility:
 <put your information here>
Workaround:
 <put your information here>
Impact:
 <put your information here>
Description of the environment:
 Operation system: <put your information here>
 Versions of components: <put your information here>
 Reference architecture: <put your information here>
 Network model: <put your information here>
 Related projects installed: <put your information here>
Additional information:
 Complete list of files with offending tasks: http://paste.openstack.org/show/508934/

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/327161

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/327161
Committed: https://git.openstack.org/cgit/openstack/fuel-library/commit/?id=9e01948dccf1f7f7ae0b41b79b0bbc7b82c54b24
Submitter: Jenkins
Branch: master

commit 9e01948dccf1f7f7ae0b41b79b0bbc7b82c54b24
Author: Maksim Malchuk <email address hidden>
Date: Wed Jun 8 17:45:24 2016 +0300

    Update regular expressions for database and rabbitmq task names

    Many tasks depend on a regular expression which should be updated to
    remove unnecessary dependencies to unrelated possible tasks defined
    pre/post deployment or in a plugins.

    Change-Id: I5943cacc09c2d4164673b60687d71118b8e50b72
    Closes-Bug: #1590444
    Signed-off-by: Maksim Malchuk <email address hidden>