Merge branch 'master' into develop

* master:
  docs: update README.md
  chore: bump version to 0.1.9
chore: add 'mochaTest' as test dependency

This also removes the 'exec:test' task
docs: fix repository url in changelog task
fix(lib): calculation of commits w/ different mail

This fixes the calculation commits for users with
the same username but a different mail.

Closes #8
docs: update depencency section in README
chore: bump version to 0.1.10
Merge branch 'release-0.1.10'

  * docs: update depencency section in README
  * fix(lib): calculation of commits w/ different mail, closes #8
  * docs: fix repository url in changelog task
  * chore: add 'mochaTest' as test dependency