Added ability to toggle the appending of CSV files on restart
(closes #2396)
Turn coverage back on now that paths are sane. References #3153
Merge pull request #3154 from milljm/testharness

Turn coverage back on
Merge pull request #3151 from aeslaughter/csv-restart-2396

Added ability to toggle the appending of CSV files on restart
Merge commit 'dfc804bbf3d8e63a8091fcaa5d54339db99f4b9a'