Simplified expressions & removed unreachable code
Making PEP8 happy

* No major stuff here
* Added and removed some lines between classes and functions
* Renamed some variables so that they are clearer to read
* Removed redundant brackets
* simple cleanups
Merge pull request #39 from wari/pep8_spelling_simple_fixes

Pep8 spelling simple fixes
Update _version.py

version number update for git version to make bug reports clearer