Integrate pegdown 1.6

[madflow]

Pegdown 1.6 hast been released - with a good amount of changes.

https://github.com/sirthias/pegdown/releases/tag/1.6.0

This release will fix a lots of parser artifacts (i.e. #43) and introduce new features and plugins (i.e #54 ).

I would suggest to include these changes and prepare a new release afterwards!

[stengerh]

Just a heads-up: I've been working on this issue. It still needs some testing and the new syntax extensions from pegdown 1.6 have not been integrated yet. The current code is available on branch issue-100-nb8.

[spyhunter99]

any consideration for the atlassian markdown generator? i think it's called common mark

[stengerh]

I guess you mean https://github.com/atlassian/commonmark-java. I did a quick check and it does not provide token positions, so it is not usable for syntax highlighting.

[spyhunter99]

gotcha, just sharing info. thanks

[Chris2011]

I think you can close this ticket in case of deprecation of pegdown.