Adding functionality allowing one to update extra post-object-creation.
Only create JiraIssue instance once.
Only create ActivecollabIssue instance once.
Only create BitbucketIssue instance once.
Only create BugzillaIssue instance once.
Only create GithubIssue instance once.
Only create TracIssue instance once.
Merge pull request #140 from coddingtonbear/inline_annotation_links_fix_single_create

Streamline annotation creation such that each issue instance is created only once