Improve code consistency

[viral32111]

Proposed changes

• Rewrite all files to use correct code formatting rules, as listed below (rules are subject to change before being officially implemented).

Code formatting rules

1. Use spaces after commas when defining/passing function arguments.
2. Use spaces after commas when defining table items.
3. Never terminate a line with a semi-colon.
4. Use Lua comments (-- & --[[ ]]) instead of C-style comments (//, /* */).
5. Use Lua operators (or, and, not, ~=) instead of C-style operators (||, &&, !, !=).
6. Use brief comments where appropriate to describe what's happening (do not over-use comments).
7. Use tabs at size 4 to indent, not spaces.
8. Use new lines when defining each item in a table.
9. Try to use strict checking for if statement expressions (i.e. use if ( whatever == true ) then rather than if ( whatever ) then).