Merge pull request #432 from yetamrra/master

Add delegate method for errors
Changed a straight apostrophe into a curly one

Changed the apostrophe in the title of the ‘Don’t Check’ button on the update permissions prompt dialog from a straight one to a curly one.
Merge pull request #434 from codyrobbins/master

Changed a straight apostrophe into a curly one
Make the error definitions public
Merge pull request #437 from MaddTheSane/exportErrors

Make the error definitions public
Fixing Swedish translations

See https://github.com/sparkle-project/Sparkle/issues/436
Merge pull request #439 from erik999/master

Fixed Swedish translations
Removed pragma which disabled a warning that is no longer shown in Xcode 6.1
Changed NSSortDescriptor key input to allow for removal of pragma
Removed use of pragma once in SULog to be consistent with the other headers
Removed outdated SUClearLog comment
Removed useless sole pragma mark
Merge pull request #444 from kainjow/master

Removed some pragmas
Update LastUpgradeCheck within xcschemes and pbjproject to 0610 for Xcode 6.1
Fix warnings under Xcode 6.1 relating the SUUpdateAlert XIB
Merge pull request #445 from tonyarnold/fix-xcode-6.1-warnings

Update LastUpgradeCheck within xcschemes and pbjproject to 0610 for Xcode 6.1