Commits graph relocation to Reports

In this version, we've moved the Commits graph to the report category to become Commit Activity Report. We believe that this category suits the concept behind the graph better, and this change will help us unify the app's features further to achieve better user experience.

Compatibility changes

Beginning with this version, the app compatibility changes to support only Bitbucket version 7.0 or higher. We have certain app UI changes planned shortly, and limiting the compatibility with the older Bitbucket versions will allow us to deliver new functionality faster.