changed error domain from iCatalog to DTDownload
Updated DTFoundation to 1.6.2
Merge branch 'master' of https://github.com/renep/DTDownload into renep-master
Merge branch 'renep-master' into develop
changed error domain to constant
Updated change log, performed Xcode 5.1 upgrade check
Updated podspec
Merge branch 'release-1.1'