Remove unused extractAttributes and extractStyles options
Allow ol.format.KML.readNumber_ to read signs and exponents, thanks @tschaub
Fix typo in kml example
Fix date calculation
Improve RegExp for parsing coordinates, thanks @tschaub
Merge pull request #1542 from twpayne/vector-api-kml-clean-ups

[vector-api] ol.source.KML clean-ups