Remove static and other attributes from the docs
Encode WKT strings statically
Parse WKT strings using a lexer/parser
Allow for empty Point & GeometryCollection
Encode empty geometries as WKT strings
Add tests for empty & invalid WKT strings
Improve documentation for ol.Feature
Merge pull request #2360 from gingerik/wkt-lexer

WKT lexer.
Make ol.proj.METERS_PER_UNIT exportable

We need to apply the `@api` annotation to the object itself in order for it to be exportable.
Merge pull request #2390 from tschaub/unit-conversion

Make ol.proj.METERS_PER_UNIT exportable.
Merge pull request #2345 from tschaub/no-static

Remove static and other attributes from the docs.
Merge pull request #2378 from pagameba/doc-feature

Improve documentation for ol.Feature