Deleted mindtouch.apitext project.
Removed DocStore implementation.
Removed MountService, AtomService, and DirectoryService.
Fixed the license header in AWS related files.
Removed PubSubServices and all classes from MindTouch.Dream.Services.PubSub.
Removed QueueService and RedirectService.
Removed mindtouch.host.service project.
Removed redundant `using` directives. Added copyright header to a few files where it was missing.
Updated copyright date to 2013.
Merge pull request #83 from bjorg/DR-106

DR-106 Remove obsolete classes and projects from DReAM 2.5