Support usage without issue tracker

[pascalberger]

Consider a mode where GitReleaseNotes could be used without issue tracker support. This would allow to use it in environments where a currently not supported issue tracker is used (like TFS/VSO). In this case it should just add the commit messages to the change log.

[GeertvanHorrik]

We are actually working on a new codebase where the issue tracker is just an addition, no longer a requirement.

[GeertvanHorrik]

But... don't get your hopes up this will be implemented soon. We have a lot on our plate.

[gep13]

Also, I think the intention of GitReleaseNotes is a flat file of some description. This file could then be picked up by GitReleaseManager to continue the process of connecting to the Issue Tracker that is being used.

[GeertvanHorrik]

@gep13 exactly, I misread that part, good addition.