[#1747] Allow html in markdown
[#1747] Swap logic to remove not and aid readability
[#1747] Fix the docstring
[#1747] Added a pretty pointless test
[#1747] Strip the markdown for htl allowed case
[#1747] Fix the tests to use correct function
[#1747] I hate tests ;p
[#1747] Make allow html test consistent with not allow test
Merge pull request #1774 from tobes/master

[#1747] Allow html in markdown