Release Notes: This release installs the fcs_dllexport.h header, which broke trying to compile with libfreecell-solver by third parties. It adds the --tracemem option. It has a bugfix for incrementally increasing the run-time limits. It adds a modified version of the kazlib balanced binary tree to the distribution to be used as a backend for storages. It revamps the various range solvers, extracting common functionality. There are some relatively minor optimizations and code cleanups.