OPEN - task 10: Generate markdown formatted gitlog 
https://github.com/danielflower/maven-gitlog-plugin/issues/issue/10
Implemented markdown renderer and simple tests.
Updated readme with new available maven plugin parameters.
Refactored code for easier testing.
Added test cases for the markdown renderer and the markdown link
converter.
OPEN - task 10: Generate markdown formatted gitlog 
https://github.com/danielflower/maven-gitlog-plugin/issues/issue/10
Merge pull request #12 from GerdZanker/develop

Thanks for the contribution! I've merged it in, but it will take a while for me to release it and get it into maven central repo.

A couple of comments:
* I couldn't view the diffs properly (I think due to tabs vs spaces issue)
* Looks like it needs a bit of refactoring around the link generation so that you don't need to use regexes to fix markdown links. Would be better to have two interfaces: one that converts a maven <issueManagement> tag into a URL and title, and a separate interface that converted a URL/title into a link. So, Markdown generator would use the JiraURLExtractor and a MarkdownLinkCreator or something.

However, I'm not too concerned about the above unless more generators are needed. So thanks again.