MYSQL support for POINTs, without DISTANCE().
insert and update tests.
Merge branch 'fix/145-point-mysql' into mwe

Conflicts:
	.travis.yml
	src/DBAL/Types/PointType.php
	src/ORM/Geocodable/GeocodableSubscriber.php
	tests/Knp/DoctrineBehaviors/ORM/GeocodableTest.php
Mwe as 1.1