Miscellanous Lua code consistency improvements: - no semicolon except between statements on same line - use of implicit cast to bool in if/while conditions, instead of various eq/neq against true, false or nil - no parenthesis around if/while conditions (C-ism) - avoid long function calls in if conditions - removed space in comma-separated expressions lists in multiple assignments - added spaces between arguments of functions calls - use tabs for indentation (in Lua files only) - don't reverse == in if conditions, like "if 42==foo then" (C-ism) - removed some extra parenthesis in complex expressions (C-ism) - added spaces around operators in most expressions for ease of reading - added comma after last element of table initializers - removed space after # operator - moved comment prefix of disabled code into tab (to keep disabled code aligned)