Improving performance by removing the dynamicism of the coordinate property
Merge pull request #30 from michaelpeternell/master

many improvements, fully backwards compatible...
Merge pull request #29 from marotan3/master

Improving performance by removing dynamicism of the coordinate property
Merge commit '5d38acffdd2b5240fe91b4b489cd972128df66cc'

Conflicts:
	OCMapView/OCAnnotation.m
bugfix: grid cluster computing works again

- I inadvertedly broke it recently...