remove divides and square root
some unit tests
format
Merge branch 'master' of ssh://personalid/khegeman/curl_noise into unit_test

Conflicts:
	CMakeLists.txt
Merge branch 'div_active' of ssh://personalid/khegeman/curl_noise into unit_test
unit test for 2d wake.  fix potential, d is used for more than the comparison.
remove /
clang reformat