Continuing ifdefing out of Epetra stuff in Albany tpetra branch when ALBANY_EPETRA_EXE
is turned off.  Ifdefed out a lot of functions in the disc directory.  Code is very close
to being able to ifdef out Petra_Converters when ALBANY_EPETRA_EXE is turned off.  Hopefully
I will get to this tomorrow.

Also converted all the LCM/test code full to Tpetra (except maybe 1 Epetra_Comm).