v3.0.0

• isValidNumber now works in nationalMode
• country-specific placeholders, which auto update (and also work in nationalMode)
• autoFormat now works for all countries as now uses libphonenumber (and now works in nationalMode too)
• cursor-to-end on tab (if autoHideDialCode enabled)
• handle North American Numbering Plan area codes (e.g. change to Canada if type "+1204")
• removed static formatNumber method as doesnt really make sense as relies on an instance of the plugin to load the utils script
• reduced filesize of data.js by generating allCountryCodes on the fly, and removing some obscure countries
• reduced filesize of flags.png by removing unused flags
• lots of bug fixes and new tests written