Adding required frameworks and libs, dropbox linking in settings, no sync yet.
Merge branch 'master' of https://github.com/InfiniDev/nds4ios
Merge branch 'master' of https://github.com/InfiniDev/nds4ios
Merge branch 'master' of https://github.com/InfiniDev/nds4ios
Dropbox auth and stuff.