Merge branch 'master'
Preparations for development environment directly as downloadable repo
Adapted the Readme files inside the Dev Environment to reflect proper usage of the Compile Time Options like 'DKULTURLAND' (D was missing)
Adapted help page to reflect proper usage of multichar options with doubledash
fixing output of help page.... preps for actions (action column size)
Adaptions for power = sub_station (deprecated) and power = station (deprecated)
Adaptions regarding barrier = something... more things than only fence needed to be covered
Added map feature amenity=toilets. Still missing: adapting other typ files, only freizeit.typ is done
Bug fix of map feature toilet.
Changed pictogramm for toilet from 'Männlein und Weiblein' to 'WC'
Improved errorhandling of some routins and adapted German Coments in mt.pl I've struggled over.

Errorhandling:
missing to add 'die ()' commands to all actions where more than one sub is executed.
Changed some additional german comments. And further adopted error checking.

Open: does the actual way of handling errors after process_command really work ?
further test with toilet (wc with border) and lighter ATM
further version of toilets and atm....
Changed ways WORK directories are used (multiple languages don't need multiple downloads):
- All actions before 'build' are going into a language unspecific directory
- only build and the actions after that (all included in 'bam') are going into a language specific directory
- before really starting with actions needed directories are created if needed.
- 'create_dirs' has been split up into 'purge_dirs' and 'create_dirs'
Next try of toilet Symbol
Finish workdir feature: build multiple languages of a map without multiple downloads
Added additional download URL for boundaries pointing to 'lambertus' OSM page
Create WORKDIRLANG and INSTALLDIR only for map type 2 & 3 (NOT for Uber-Regions)
Back to light version of ATM: 1 pixel with 1px white line around it.