Allow setting custom column width with AddColumn

Adds a third argument, "width", to AddColumns function. Argument is optional and defaults to 50 to retain compatibility with old code.
Make column for user tags slightly wider

70 felt a bit cramped, 90 looks nice.
Fix indentation inconsistencies
Fix indentation inconsistencies
Fix indentation inconsistencies
Merge pull request #656 from YMIndustries/master

TTT: Allow setting custom column width with AddColumn