Add methods for multi-polygons.
Test multi-polygon init, fix a multi-polygon init bug.
MultiLineString class def
removing sorting stuff for now
Test insert, remove polygons.
Merge remote-tracking branch 'upstream/master'
Add NSNumber test to isXYPair
Merge branch 'master' of github.com:esripdx/terraformer-objc

Conflicts:
	Terraformer/TFPoint.m
Merge pull request #17 from poeks/master

MultiLineStrang
Merge remote-tracking branch 'upstream/master'

Conflicts:
	Terraformer.xcodeproj/project.pbxproj
Merge pull request #19 from mbcharbonneau/master

Mutli-polygon methods + tests
merge