enhance --check-styles:
- don't print routing warning message for ways that are ignored 
- print warning message for objects that have a max. resolution
which is lower than that of the highest configured level, which means
they are ignored 

git-svn-id: http://svn.mkgmap.org.uk/mkgmap/trunk@2911 25d90789-57f7-4ee0-8453-03a3dfeeeb22