added some git and sv files to gitignore

git-svn-id: https://dune.mathematik.uni-freiburg.de/svn/dune-fem-functionals/trunk@215 4028485c-44d9-4cde-a312-5a4635ee2db9

.gitignore

@@ -85,3 +85,5 @@ examples/elliptic_finite_element/elliptic_finite_element
 examples/elliptic_finite_element/elliptic_finite_element-main.o
 examples/elliptic_finite_element/boundaryData.vtp
 doc/latex/dune-functionals.pdf
+*.orig
+*.tmp