Make org.mockito.asm.signature package optional in Import-Packages.

Fixes Issue #104.
Growing the release plugin

Added new feature to the build/release process: it is now possible to execute single release step.
Growing the release plugin

Added a way to execute specific rollback step
Growing the release plugin

Started pushing out the complexity of Git operations and replacing user/email.
Growing the release plugin

Getting the author setting / unsetting working correctly. Moving classes around packages. Added impl.
Growing the release plugin

Ensured the author is configured and cleaned up during rollback
Growing the release plugin

Added clean up feature but I'm not liking it very much
Growing the release plugin

Refactoring and tidy up
Growing the release plugin

More tidy up
Growing the release plugin

Distributed classes into separate packages
Changed the way author is set on the git operations
Added a way to rollback all release steps
Small grammer issue

"The any family methods **do not** do any type checks" doesn't make sense.

Pull request: #149
Fixes issue #114
Increment version '1.10.18' -> '1.10.19' by Travis CI build 349 [ci skip]
Added release notes explicitly

Because the automated release step has failed because there was not previous tag :( All good now :)

[ci skip]
Fixed release notes [ci skip]
Merge pull request #125 from radimk/osgi-manifest

Make org.mockito.asm.signature package optional in Import-Packages.