Updated android-maven-plugin version to 3.9.0-rc.3
Removed .factorypath file

This file is redundant with the POM, and should be generated with
the m2e-apt plugin at project import into Eclipse.
fix: reformatting SupposeThread-feature classes
Merge pull request #1119 from Artyomcool/execution-thread-control-reformatting

fix: reformatting SupposeThread-feature classes
add: JavaDocs for SupposeThread-feature
Merge pull request #1121 from Artyomcool/execution-thread-control-javadocs

add: JavaDocs for SupposeThread-feature
add: missing license headers