Set to version 6.3.1

Author: akenmorris

CMakeLists.txt

@@ -6,7 +6,7 @@ cmake_minimum_required(VERSION 3.11)
 SET(SHAPEWORKS_MAJOR_VERSION 6 CACHE INTERNAL "Major version number" FORCE)
 SET(SHAPEWORKS_MINOR_VERSION 3 CACHE INTERNAL "Minor version number" FORCE)
 SET(SHAPEWORKS_PATCH_VERSION 1 CACHE INTERNAL "Patch version number" FORCE)
-SET(SHAPEWORKS_VERSION_STRING "6.3.1-RC1")
+SET(SHAPEWORKS_VERSION_STRING "6.3.1")
 
 
 # First, check that files were checked out properly using git-lfs