Check pickmes against added requests

Check pickmes against added requests and edited added requests against other
added requests, but don't flag an added request if a pickme conflicts against it
Replaced the trac specific ticket link with a general link.

Bug description: when you use the pushmanager create bookmarklet on a review
boad CR, jira tickets are not parsed correctly. They are thought to be trac
tickets, and an incorrect trac link is generated in the PR comments.

Ref: (PUSHMGR-63) Pushmanager Create does not parse jira issues correctly
Fixing #35
Removed redundant comment on config example.

Removed a unecessary line describing the ticket_tracker_url_format field from the
config example file.
Fixing #35
Test added for the ticket tracker url.

The automatic test now checks also the ticket tracker url (just tests that
the javascript contains the word %TICKET%).
Merge pull request #105 from fede1024/pushmgr-63

Replaced the trac specific ticket link with a general link.
refactoring unit test for #35
Skip pickmes that have not been checked against master
Strip whitespace from sensitive request fields

Fields from request information that need to be machine-readable later
(branch and repo) are now stripped on request add and edit
Merge pull request #108 from rschlaikjer/strip-branch-repo

Strip whitespace from sensitive request fields

Fields from request information that need to be machine-readable later
(branch and repo) are now stripped on request add and edit
Merge pull request #106 from Mango-J/master

Split pushmanager messages across multiple lines to avoid max char limit

Split based on number of nicks, 5 nicks max per line.
Merge pull request #104 from rschlaikjer/test-pickmes-against-added

Improve pickme conflict detection logic

* Check pickmes against added requests
* Editted pickmes only check against other added pickmes
* Added pickme's do not gain conflict tags when compared against non-added pickmes
* Skip conflict-master pickmes
* Skip unchecked pickmes. Those pickme's will be checked later.