CHIRP

Since we want good Python style to be used, we should enforce it with the pep8 tool.

The first order of business will be to fix the whitespace problem. This single issue represents the vast majority of reported problems. Once this noise is eliminated, additional problems can be isolated and fixed. Per discussion with Dan S., we will move the code toward 4 space indentation levels (no tabs), proper spacing at top of scopes, line lengths < 80 characters, and so on. Some details will be worked out once patching is underway. Additional style conventions will be listed in this issue as this process moves forward.

The final goals of this issue are twofold. First, a firm style guide will be developed in the form of a specific configuration for the pep8 tool. Second, the pep8 tool will be added to the automated patch testing process, preventing further style issues from ever reaching the main repository.