---Undo changes made to generation of run name. Original idea was to
automatically pass preamble to restarted run. This is not ideal however,
since you may just want to restart a run previously analyzed without
automatically analyzing it. The only solution in this case is to assume
no analysis and require user to explcitly initiate a preamble string.
Version bump to 0.14.6
Regenerate gemspec for version 0.14.6