* Added a test asserting the last followers are removed first as required by moveShard
* Remove the last followers first
* Removed unused includes
* Updated CHANGELOG
* added debugging methods
* try to fix invalid access in case of error
* remove unused members
* bugfixes and comments
* all agency fixes in
* merge bug
* partially unguarded Agent::lead fixed
* all agency fixes in
* added nrBlocked to thread startup eval
* added nrBlocked to thread startup eval
* recombination of cases in State::get
* some maps replaced with unordered_maps
* optimized maps some