Update version numbers post-release
Remove hard-coded links
IDE-917  Configuration kind element should not be unsettable as this causes problems with serialization logic of empty lists.
Merged develop-1.8 to 1.9
Merged in develop-1.9
Adding non_existent call
Removed non_exist method since it would encourage the creatation of lots of threads.  Created a fixed size thread pool for releases since these are generally fast and we don't want to artifically increase the size of the thread pool if not necessary.