Merge branch 'dev'

Merge branch 'dev'. Release v0.9.0-beta

Fixed spelling errors. Added release date to changelog

Merge branch 'dev'

Added in missing ExecuteShellcodeRtlCreateUserThread function

Merge remote-tracking branch 'origin/master'

Merge branch 'dev'

Merge dev version 0.1.4 to master

Added GNU GPL v3.0 license information.

Added Makefile; Updated agent to have random padding size to message

traffic.