Gemfile: Updated  to use arachni 0.4.7
Bumped version number
Merge branch 'release/v0.4.4'
Gemfile: Grab Arachni from RubyGems
CHANGELOG: Updated release date
Merge branch 'release/v0.5'

Conflicts:
	CHANGELOG.md
	Gemfile
	Gemfile.lock
	README.md
	VERSION
Restored experimental/dev info