Adds `caveats` and updates `version` stanzas to match consistency with the other sublime text casks.

Casks/sublime-text3.rb

@@ -1,8 +1,11 @@
 class SublimeText3 < Cask
   url 'http://c758482.r82.cf2.rackcdn.com/Sublime%20Text%20Build%203059.dmg'
   homepage 'http://www.sublimetext.com/3'
-  version '3059'
+  version 'Build 3059'
   sha256 '057c12afed359ea93f996b2e73973fa8ea2bfb14a3e61a5e13b467c5c38d4ca5'
   link 'Sublime Text.app'
   binary 'Sublime Text.app/Contents/SharedSupport/bin/subl'
+  caveats do
+    files_in_usr_local
+  end
 end