sublime-text3: Various improvements

Add name, uninstall, zap, and conflicts_with stanzas. Interpolate
version in url and add comment indicating that download host is official
vendor.

Casks/sublime-text3.rb

@@ -2,14 +2,28 @@ cask :v1 => 'sublime-text3' do
   version 'Build 3065'
   sha256 '373dbfcddab7fb288351763402361cd4045f4a9510eb32f81938d0c156d161c3'
 
-  url 'http://c758482.r82.cf2.rackcdn.com/Sublime%20Text%20Build%203065.dmg'
+  # rackcdn.com is the official download host per the vendor homepage
+  url "http://c758482.r82.cf2.rackcdn.com/Sublime%20Text%20#{version.sub(' ', '%20')}.dmg"
   appcast 'http://www.sublimetext.com/updates/3/stable/appcast_osx.xml',
           :sha256 => 'bb8df68fe6a87966c4662948f4f147ac5dd0d1cd3a8d5342c56a11a018ff81e9'
+  name 'Sublime Text'
   homepage 'http://www.sublimetext.com/3'
   license :closed
 
   app 'Sublime Text.app'
   binary 'Sublime Text.app/Contents/SharedSupport/bin/subl'
+
+  uninstall :quit => 'com.sublimetext.3'
+
+  zap :delete => [
+                  '~/Library/Application Support/Sublime Text 3',
+                  '~/Library/Caches/com.sublimetext.3',
+                  '~/Library/Preferences/com.sublimetext.3.plist',
+                  '~/Library/Saved Application State/com.sublimetext.3.savedState'
+                 ]
+
+  conflicts_with :cask => 'caskroom/versions/sublime-text-dev'
+
   caveats do
     files_in_usr_local
   end