set wpsWorkDirIsRWorkDir to false

This seems to not get set when RServe is remote.  I think this could either start as false and be set to true if it is localhost, or set it to false in this case.
Merge pull request #16 from jiwalker-usgs/patch-1

set wpsWorkDirIsRWorkDir to false
Merge remote-tracking branch 'upstream/master'