Merge pull request #19 from irrationalfab/podspec

Improved podspec
Cleanup/structuring of DTBonjour and DTDownload
in preparation for creating sub specs for them
Cleanup
Updated podspec #18
Updated podspec, DTDownloadCache is iOS-only.
DTAsyncFileDeleter is for iOS
Fixing podspec
Removed defunct pref links category
Removed unnecessary global header
fixed Mac warnings on DTASN1Parser
fixed problem when resuming DTDownload
Removed test line
Merge branch 'master' of github.com:Cocoanetics/DTFoundation
Fixed dependencies for Unit Test
sorted frameworks folder
Adjusted deployment targets on iOS for subspecs
Updated podspec
Merge branch 'master' of github.com:Cocoanetics/DTFoundation
Fixed type
Added project headers also to public for static framework
fixes #17 (hopefully) (if not let me know)