Added API Key to Source for use with Github

Implemented rough product matrix version/status integration

Initial UI for integrating Product Matrix versions

Separate string for changeset column title

Version removed from lang/ by translator request

Fix #122: Implement method to edit changeset data ...

Enhances the existing update method for porting status with a full edit
page allowing the user to update the following changeset data:

- Author's user ID
- Committer's user ID
- Changeset branch
- Porting status
- Commit message

Also fixes an issue where users without update access can still see the
dropdown and update form for porting status.

Reimplemented changeset linking; version increment

Added 6th commit note parameter for changeset ID

Implemented selectable fixed issue assignment

Fix #121: Configurable bug fixed status change

Fix #117: Replace language string joins

Re-licensed the project under the MIT license

Fix #101: Allow importing of all repos via id=all ...

Reworked import processing to allow passing id=all to the GET query
instead of a numeric Repo ID.  With this argument, the system will
automatically run the "import latest" for all repositories configured
for source integration.  This will simplify the process for keeping a
large number of repositories up to date via cron job.

Cleaned out output from repository import to look nicer, and support an
eventual UI option to import latest from all repos.

Issue #90: Move to direct-call framework design ...

Rather than signalling events everywhere and letting extension plugins
handle them if they choose to, the framework should be reworked to
directly call functions on the appropriate integration plugin. This will
both reduce overhead from events and simplify plugin work by removing if
statements at the beginning of every event handler.

This will require follow-on changes to all source integration plugins to
work with the new parent class API.

Version bump in Source plugin to signify API changes.

Implement adding the repository name in bugnotes

Allow repo statistics to be disabled.

Issue #28: More copyright updates.

Fix #21: Changed to using $X style placeholders in message template.

Issue #20: Added configuration settings for enabling and setting bug fixed messages.

Fix #18: Added configurable threshold for setting vcs username.

Issue #18: Initial implementation of user-vcs name associations.

Fix #19: Display committer information if different from author information. ...

Moved author and committer display to ViewAPI functions.

Issue #13: Convert remaining files to AGPL3.

Issue #11: Implemented repo management form for updating/creating branch mappings. Switch to storing versions as strings.

Issue #11: Defined basic mapping strategies and names.

Issue #11: Configuration settings to enable/disable branch mapping.

Various tweaks to how the bugfix configurations are layed out and named.

Fix #9: Allow auto-resolving to set a configurable bug resolution.

Issue #3: Added interface configuration for auto-resolving issues.

Implemented ability for update users to attach/detach bugs to changesets.