Fix errors passing command-line arguments on to SBT etc.  Change to top-level TextGrounder dir when running SBT so the right build.sbt file gets picked up.
Fix errors passing command-line arguments on to SBT etc.  Change to top-level TextGrounder dir when running SBT so the right build.sbt file gets picked up.

tectronics/textgrounder,tectronics/textgrounder,tectronics/textgrounder