Major refactoring, formatting, and general improvements

[lolletsoc]

• Removed Eclipse and Sublime specific files and added them to the ignore.
• 'scoreboard_to_markdown' now uses '.join' method in list.
• IO functions now use 'with' to ensure they are closed regardless of the outcome.
• Removed test-specific parameters from DeltaBot. Main and testing scripts should provide the reddit client in whatever state they wish for it to be tested. This should lead to easier testing - though no tests currently use the feature (next pull shall fix that!).
• Formatted all committed modules.
• Cleaned imports.
• Fixed some 'Noneness' checks.

All tests run successfully.

[lolletsoc]

The DeltaBot class requires a lot more testing. The changes I've made should make it much easier and allow for a lot more cases to be tested against.