Continued:

Continued:
- Let's use (and cache) the UNL instance instead of fetching an array from it
  and then taking parts out of it. This way is more OOP-ed
- added getExternalUnl() and getInternalUnl() as first methods
- getUnlData() is now no longer used, see first comment why
- renamed path 'unl' -> 'locator' to have it same as in interfaces
- updated target year
- updated core framework

Signed-off-by: Roland Häder <roland@mxchange.org>