Implement getRepoStats() function (TriBITS #45)

This function gets all of the stats needed to fill in the table for the
special 'dist-status' command.  I have pretty good unit tests too.
Switch --dist-mod-only to use  getRepoStats() (TriBITS #45)

I removed the funtion repoHasLocalChanges() as it is no longer needed.
Add getTableField() to print table (TriBITS #45)
Implemented dist-repo-status command printing summary table (TriBITS #45)

I also fixed up a few of the other tests as well.

I feel pretty good about the quality of the testing for this.  I think it is
pretty solid.
Updated generated documentation (TriBITS #45)

Build/Test Cases Summary
Enabled Packages: TriBITS
Enabled all Forward Packages
0) MPI_DEBUG => passed: passed=177,notpassed=0 (0.79 min)
1) SERIAL_RELEASE => passed: passed=177,notpassed=0 (0.74 min)
Other local commits for this build/test group: 88a18c0, 43287f8, 8f33dc4, 30ece4c
Merge remote branch 'casl-dev/master'