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Removed outdated SUClearLog comment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
Merge branch 'master' of https://github.com/sparkle-project/Sparkle