mkgmap r2775, selfcompiled
Removed mkgmap option: remove-short-arcs=3
Bug Fix: added proper errorhandling in case of invalid options
New: Added new map RUS_CENTRAL_FD and changed RUS_EUR to 'parent map' only.
Changed default language of Russian maps to 'ru'
Bugfix: proper errormessage in case of nonexisting map used on command line