Overhaul the MapRow with lots of new options and working specs.
map_type is redundant since it's a hash of map properties.
Select the annotation if the title is set.
Document all the new map row goodness.
Merge branch 'refs/heads/master' into map-enhancements

* refs/heads/master:
  Add functional test for WebLinkRow
  Allow WebLinkRow to accept an NSURL and not just a string.
  Adds web_link to the list of cell types.
  Adds WebLinkRow with spec.
  Update rake file to modern rm 2.0
  Rename :map_view to :map

Conflicts:
	LIST_OF_ROW_TYPES.md
UITextAlignment is deprecated in favor of NSTextAlignment
Merge pull request #175 from markrickert/map-enhancements

Map enhancements
Merge pull request #178 from markrickert/nstextalignment

UITextAlignment is deprecated in favor of NSTextAlignment
use weakref to prevent leak

I noticed that formotion was leaking for me (2.17) and I traced it down to this
Merge pull request #179 from iwarshak/patch-1

use weakref to prevent leak