Added MaxCDNURlPlugin class and SupportedFileExtensions list.
Added new menu items, URL sheet with branding, and Localizable.strings file.
Added RegexKitLite and initial regex to parse URLs.
Added better regex and initial URL replacement code.
Added CodaPlugInMinimumAPIVersion to Info.plist and cleaned up matching logic. Still need to work on replacing each match with the URL.
Added URL replacement, undo and minor tweaks to the URL sheet to disallow empty URLs and enable/disable save button.