Add LibreCAD
Add ZendStudio

Add ZendServer

Update and rename zend-studio.rb to zendstudio.rb

Update and rename zend-server.rb to zendserver.rb
Add DEVONThink Pro 2.7.3

Add cask for DEVONThink Pro 2.7.3
App complains about being installed in `~/Applications/` on first launch but this can be dismissed.
add CLI binary for Golly.app
Merge pull request #3091 from rolandwalker/golly_binary

add CLI binary for Golly.app
Merge pull request #3087 from ndr-qef/librecad

Add LibreCAD
Merge pull request #3078 from bingfoon/master

Add Zend Studio 10.6.0
remove OmniOutliner Pro Cask

closes #2777.  This was discontinued as a separate product.
fix broken URL for OmniWeb
the "latest" url contained a versioned subdir
fix broken app link for CLIX.app
fix broken URL for doubletwist.app
fix broken link for LogMeInIgnition
fix broken link on SiteSucker.app
remove discontinued app Speed Download

per http://www.yazsoft.com/, this app is no longer available
and will eventually "stop working"
fix broken URL for SubsMarine.app
fix broken URL for UberPOV.app

and reformat caveats
Merge pull request #3089 from dave-tucker/devonthink-pro

Add DEVONThink Pro 2.7.3
Merge pull request #3104 from rolandwalker/fix_uberpov_url

fix broken URL for UberPOV.app
Merge pull request #3103 from rolandwalker/fix_subsmarine_url

fix broken URL for SubsMarine.app