6.1.22

Minor feature and bug fix release for 6.1.x series

• unified link templates
• adds max_image_area, max_image_width and min_thumbnail_distance option to config
• adds help option to actions help=1 (print help and exit)
• adds option to localize action help (see action/lang/help.<lang>.php)
• adds function number_format() and template filter number_format (uses intl NumberFormatter)
• replaces Mozilla specific WikiEdit CSS with var()
• replaces unnecessary double quotes
• adds admin_massregex action (see community/action)
• split HTMLSax3 to one file per class
• PHP Thumb Library 2.3.0
• SafeHTML 1.3.13