Fix mentions in slack

Fix mention #46 - thanks to @waelouf

Refactoring and fix storing of API Token

Some code style changes
Refactoring
Bugfix of #86 - thanks to @tonybaroneee

Logo fixes and linking mentions in attachments

Thanks to @R-Giskard-Reventlov for fixing mentions in attachments.

We've also updated the logos to me (hopefully) a little less crap.

FIxed Notification Updating

Sorry folks, we accidentally introduced a bug which prevented you from updating your slack notifications.

This has now been resolved in this release.

Please note, the original binaries were incorrect. They have now been updated (5-Jan-2016)

Specify Slack API token on a project and build level

This release brought to you entirely by @Surg. One of the most requested missing features, the ability to specify the API token / Webhook URL at a project and/or project level.

I'm so happy to get this contribution. Nice work @Surg.

Avoid duplicate committer names

This release makes it so the committers string does not contain duplicates. Previously you may have seen something like:

Changes By
sdozor, sdozor, sdozor

This situation is made much worse when you have a lot of commits/committers - you end up with a committer string that is extremely long and kinda useless. With this change it should just look like this:

Changes By
sdozor

This bug should be fixed in this release.

Note: This release was entirely contributed by @samdozor . So much ❤️

Bug fixes

• "Only trigger when build changes from Success to Failure" not saving #37
• Fix typo in Default Channel field description #36

Thanks to @ZevEisenberg who contributed a PR and issue that make up this release.

Failure Reason and Failed Tests

Hot on the heels of 1.3 which brought custom content per notification, this release adds support for outputting

• Failure Reason (e.g. compilation failed / exit code 1 )
• Test Failures

Custom Content per notification!

Previously if you wanted to change the content settings of the notification (show build agent, show commits / committers etc) then you had to change them globally.

This release adds the ability to customise these settings per notification / build.

You can now customize:

• Show Elapsed Build Time
• Show Build Agent
• Show Commits
• Show Committers
• Max Commits to Display
• Bot Name
• Icon Url

Configuration UI, proxy improvements

Features

• Moved configuration to a new slack/slack-config.xml to make it easier to update
• Introduced Administration UI for configuration instead of having to use the XML
• Test your Slack configuration without having to trigger a build using the new Test Notification button.
• Support for Incoming WebHook URL instead of api token.

Bug Fixes

• Fixed proxy configuration thanks to @uldissturms
• Fixed link for TC9 documentation. Thanks @mfloryan