Suppressing long line warning in pep8

Arbitrarily shortening lines using the standard procedures will only tend to
make the code brittle.  Better to shorten when possible, but not require it.
Made bin/tangelo pep8 compliant
Brought all other files up to pep8 standards

Also fixed some errors in CMakeLists.txt due to changes in file structure, etc.
Merge branch 'fix-pep8-errors'
Fixing typo that was preventing python coverage test from running