Add missing spaces within braces.
Fix the spacing around brace-delineated blocks.
Use the ruby 1.9 hash syntax consistently.
Use underscore as a separator in large numbers.
Avoid the use of Perl-style backrefs.
Add surrounding spaces in default value assignment.
Add spaces around operator.
Use proc instead of Proc.new
Prefer single-quoted strings when you don't need string interpolation or special symbols.
Use %w or %W for array of words.
Don't use parentheses for method calls with no arguments.
Remove the commented-out hash members.
Remove spaces from within braces.
Remove redundant uses of 'self'