Use NUnitAddin instead of NUnitTeamCity task on TC (#503)
Use NUnitAddin instead of NUnitTeamCity task on TC (#503)

The NUnitTeamCity task has issues when run with mono-4. When running
tests on TC nothing changes for the user, the tests still show up
while running. See
https://confluence.jetbrains.com/display/TCD10/TeamCity+Addin+for+NUnit
andrew-polk/libpalaso,gmartin7/libpalaso,ermshiperete/libpalaso,gtryus/libpalaso,ermshiperete/libpalaso,sillsdev/libpalaso,gtryus/libpalaso,ermshiperete/libpalaso,andrew-polk/libpalaso,andrew-polk/libpalaso,ermshiperete/libpalaso,gmartin7/libpalaso,glasseyes/libpalaso,glasseyes/libpalaso,gtryus/libpalaso,sillsdev/libpalaso,sillsdev/libpalaso,sillsdev/libpalaso,gtryus/libpalaso,gmartin7/libpalaso,andrew-polk/libpalaso,gmartin7/libpalaso,glasseyes/libpalaso,glasseyes/libpalaso