v0.3.1

* 5th June 2013: version 0.3.1
 - Added VevaciousRunner::findTreeLevelExtrema(...) as a synonym for
   VevaciousRunner::overwriteTreeLevelExtrema(...).
 - Changed verdict of results from "unstable" for tunneling times below
the
   threshold to "short-lived" and from "metastable" to "long-lived" for
those
   over the threshold.
 - Added example model files in Vevacious/MSSM/ that use purely the
SLHA1
   conventions without requiring the extra HMIX data lines that are
assumed by
   SARAH.