Adding possibility to send userproperties to UIAutomator

Example:
<uiautomator>
	<propertiesKeyPrefix>Prefix</propertiesKeyPrefix>
</uiautomator>

> mvn <goal> -DPrefixKey=Value
Re-enabled aapt --debug-mode
upgraded screenshot library to 1.9 to have ddmlib version in sync
Merge pull request #212 from Shusshu/issue-zipalign

Fix for zipalign tool
Use ManifestMerger on classpath, remove reflection based strategies
Merge pull request #213 from Shusshu/issue-debug

Re-enabled aapt --debug-mode
removed comment after retesting and finding it now works again..
Merge pull request #214 from jameswald/r22-merge-strategy

Use ManifestMerger on classpath, remove merge strategies
updated parent to get latest plugins
updated to new release
[maven-release-plugin] prepare release 3.6.0
[maven-release-plugin] prepare for next development iteration
Documenting the <propertiesKeyPrefix> more thoroughly.
upgraded builder library to 0.4.1 so that sdk 22.0.1 components are used
Use `artifact.getId()` to avoid namespace colllisions

The previously used `artifact.getArtifactId()` is not guaranteed
to be unique - two apklibs with the same artifact id (e.g. 'library')
will overwrite their configuration.
Merge pull request #216 from jberkel/master

aidl generation: Use `artifact.getId()` to avoid namespace colllisions
Merge pull request #211 from SimonTurfer/master

Adding possibility to send userProperties to UIAutomator
added aar as supported extension
updated maven and adapted aether, also had to exclude old version of asm causing headaches
changed package for aether classes to org.eclipse and fixed where changed, current it compiles but tests fail NoClassDefFound org/sonatype/aether/RepositorySystemSession, not sure where that comes from