Towards 4.5.0

[Manfred Moser (simpligility)]

Hi all,

Its been a while but I finally got a round to merge a few PRs and get things a bit cleaned up. 

The current changelog is up to date and I could cut a new 4.5.0 release shortly.

https://github.com/simpligility/android-maven-plugin/blob/master/src/site/asciidoc/changelog.adoc

If there are any other changes anyone wants to get in or any problems occur in your testing please let me know here.

Thanks

Manfred