Partially fix issue 314.
Use info instead of cout for PETSc parameter parsing.
Merge branch 'master' into pefarrell/hpc-tweaks

Conflicts:
	dolfin/la/EpetraKrylovSolver.cpp
	dolfin/la/EpetraLUSolver.cpp
Add assembler tests for higher order polynomials. Fixes Issue #338.
Update .gitignore file
Merge branch 'pefarrell/hpc-tweaks'
Merge branch 'garth/fix-issue-338'