Update countries.xml
Update opt-countries.xml
Private parkings (shown from zoom 17), fee=yes parkings
Fix parking icons
Linear barriers in night mode was not visible. Tweak barrier=ditch color
Add natural=cliff
Add waterway=wadi to default and copy waterways code from UniRS (more flexible)
Remove fill from highway=raceway (from UniRS)
New quarry shader (day and night modes)
Merge pull request #206 from hvdwolf/master

Update countries and opt-countries; move mexico
Add new beach shader
Add new power=tower icon for UniRS
Update generator:source icons
Improve visibility of railway=level_crossing icon
Fix polygonal highway=tertiary,track. Fix noexit icon in LightRS.
Add support for abandoned and ruins tag to buildings (from UniRS)
Add support for polygonal runway, abandoned runways (from UniRS)