Upgrade Cloak to v2.0.8

Cloak v2.0.8 released 2014-10-16.
Merge pull request #6737 from vinkla/gravit

Upgrade Gravit.app to v1.0-rc1
Merge pull request #6738 from JeanMertz/patch-2

update Air Video Server HD to 2.0.2
Merge pull request #6739 from sebnash/cloak

Upgrade Cloak to v2.0.8
Add CronniX.app 3.0.2

Closes #6731.
Merge pull request #6730 from yegortimoschenko/update-vyprvpn

Update VyprVPN cask to v2.6.1.2422
Merge pull request #6741 from vitorgalvao/fix-6731

Add CronniX.app 3.0.2
Add Shady.app v1.0.3
Add Intensify Pro.app 1.0.3-610.
point `chromium.rb` at canonical source

fixes #6747
Merge pull request #6748 from rolandwalker/canonical_chromium

point `chromium.rb` at canonical source
Merge pull request #6743 from gromzly/shady

Add Shady.app v1.0.3
Upgrade CodeKit.app to v2.1.8
Merge pull request #6749 from vinkla/codekit

Upgrade CodeKit.app to v2.1.8
gitter 1.159
gravit: fix download filename

It seems they changed the filename.
Merge pull request #6753 from durka/patch-1

gravit: fix download filename
Merge pull request #6751 from andyli/gitter

gitter 1.159
Fix module capitalization
Fix incorrect checksum preventing elm-platform from being installed