Increase width of stream, ditch, and drain

* Resolves #896.
* Resolves #967.
Restore rendering order water areas

This resolves #943.
Add text-wrap for aeroway=aerodrome
display gates from z16 like other barriers. related to #323
Render all documented bridge types

The chosen bridge types have been discussed and agreed on on the tagging
mailing list.

This resolves #440.
Merge pull request #980 from mkoniecz/gates

display gates from z16 like other barriers. related to #323
Merge pull request #981 from math1985/bridgetypes

Render all documented bridge types
Merge pull request #977 from math1985/aerodrome-wrap

Add text-wrap for aeroway=aerodrome
Merge pull request #976 from math1985/water-order

Restore rendering order water areas
Merge pull request #975 from math1985/stream-width

Increase width of stream, ditch, and drain