Fixes for parallel operation

misc_ex10 uses stitch_meshs, which currently requires SerialMesh

misc_ex11 wasn't properly querying a dof when run on more than one
processor.  sum() isn't quite the best solution, but it's the
simplest.
Fix for linker undefined reference error
Fix for --disable-ifem
Match new QGrid behavior on non-tensor elements
Test more than just QGAUSS