improve METAR observation date format display using date manip plugin; update documentation

extend function to METAR's using checkwx api * fix broken path to jquery - was causing inappropriate call to openwethermap api looking for jquery/jquery.min.js as city/country pair * tidy up documentation

added country code to city name display

updated selectable default location; new metar-taf.com widget URL

template layout improvement

refactored to allow env-dependent settings in absence of environment yaml files

location of yaml requires FindBin::Bin for cron

* added form input for location * default location if not specified on 1st call * Console::Colored for dev logger

working app