Process images with LinkRenderer (fixes #95)

[gitblit]

The proposed patch allows interception of image tag generation with the LinkRenderer allowing the same type of manipulation flexibility as already offered for explicit links, wiki links, etc.

[gitblit]

@sirthias What can I do to move this pull request forward?

[sirthias]

Sorry, James, I've been incredibly busy these last weeks.
If you add a couple of tests for this new feature I have no problem with merging this patch.
Thanks!

[gitblit]

I was afraid you'd say that as your tests are written in Scala - which is something I don't know how to use. Maybe I will give it a shot this weekend.

[sirthias]

This is the perfect opportunity to give it a shot!
All you need to do is to install sbt, change into the project root and call sbt.
Once you are in the sbt shell you simply say test.
Writing the tests should be pretty self-explanatory, even you have never written a single line of Scala before.

[gitblit]

@sirthias I've gotten sbt testing working on Fedora. I didn't add any new test cases but I did discover that my changes cause the existing suite to fail... because they actually improve the rendered output. I adjusted the expected output of Maruku/images.html to include the title attribute which was previously discarded but is now properly rendered. So this PR is a fix and a feature, all-in-one.

[gitblit]

@sirthias Sorry to nag. Have you reviewed these changes? I'd like to ship a new release of Gitblit in December which depends on an officially released pegdown with this patch.

[gitblit]

@sirthias ping.

[sirthias]

Sorry it took so long.
Just merged, packaged, pushed, tagged and released pegdown 1.4.2 containing your patch....

Thanks again!

[gitblit]

Awesome! Thank you. When you say released do you mean you pushed a new jar to Sonatype for syncing to MavenCentral? That'll be the next thing I need.

[sirthias]

Yes, the 1.4.2 JAR should be available from sonatype releases and be synced to maven central shortly.

[gitblit]

Works great, THANK YOU!!

[gitblit]

I updated my "next" demo server with Pegdown 1.4.2 for the merged image visitor. This allows me to load images relative to the repository.

Check it out here:
https://next-gitblit.rhcloud.com/docs/mirrors!butterknife.git

The android/plate image is loaded relative to the document from the repository.
Thanks again.