Small fixes towards a simpler bravo.

Did some small fixes/finishing touches here and there.

Summary:
===
* Moved tests out of ___bravo___, and into main tree.
* Turned test packages into normal directories.
* Fixed 3 files not being executable when they really should have been.
* Removed unused and old code in ___run_benchmarks.py___.
* Added 'total elapsed time' feature to ___run_benchmarks.py___.
* Fixed these 3 PEP8 errors: E301, E302, E303. Many more remain, but I've been told autopep8'ing is bad :(
* Moved ___images/___ to ___docs/images/___.
* Added ___samples/___, this will be used later on.


Hopefully these commits are of more use than my last ones, which turned out to be a total failure :(.