Merge pull request #388 from abukin/updates

Remove :app argument from Postgres cask, update SourceTree to 1.6.1

Casks/postgres.rb

@@ -3,5 +3,5 @@ class Postgres < Cask
   homepage 'http://www.postgresapp.com/'
   version 'latest'
   no_checksum
-  link :app, 'Postgres.app'
+  link 'Postgres.app'
 end

Casks/sourcetree.rb

@@ -1,7 +1,7 @@
 class Sourcetree < Cask
-  url 'http://downloads.atlassian.com/software/sourcetree/SourceTree_1.6.0.1.dmg'
+  url 'http://downloads.atlassian.com/software/sourcetree/SourceTree_1.6.1.dmg'
   homepage 'http://www.sourcetreeapp.com/'
-  version '1.6.0.1'
-  sha1 '3c6aec10ca8dc5faff8d19de9eeff6e9ff876948'
-  link :app, 'SourceTree.app'
+  version '1.6.1'
+  sha1 'e4a98fe4130a9d795d0857b625abc1601c3456d3'
+  link 'SourceTree.app'
 end