adding travis-ci automation to the master branch.
adding travis-ci automation to the master branch.

added travis-ci automation script and a 'partialx' testing target to
allow us to perform more than a single run of testing without running
afoul of travis-ci's 50-minute build timeout.  'partialx' tests six
of the twelve configurations tested by 'allx'.
   .travis.yml (new),
   mats/Mf-base

cisco/ChezScheme,cisco/ChezScheme,gus-massa/ChezScheme,gus-massa/ChezScheme,gus-massa/ChezScheme,cisco/ChezScheme