Fix: In rare cases involving manual intervention a prune setting can be altered but not remove any tiles.  In this case a new histogram is calculated which has the same input transform checksum resulting in a duplicate.  This workaround fix removes the duplicate if the original data file does not exist.
Updated to build smaller images for TEM volumes to increase build speed
Switched some function to nornir_imageregistrations image size function
Changes for bounding box parameter ordering, changed to (Y,X)
Informative message added in error condition for refine stos
Version bump to 1.1.5