Implements a check-box for gc-de/activation for livemap and searches
Generate okapi attribute parser
Implements OKAPI access for oc.de

Enable OKAPI for opencaching.de
Enhance OKAPI to allow nearby and livemap searches
Enhance OKAPI to allow posting logs and watchlist changes
Fixes after review
Fix 'escapeHtml' missing in older Api-versions
Added okapi-key documentation to README
Registered opencaching.de urls
Accomodate build process to get okapi keys from private.proeprties
Fixed issue with not loggable OC-caches
Merge pull request #2787 from rsudev/ocde_okapi_2

Implements OKAPI access for opencaching.de