Using NSNumber properties (unsupported) now throws a more informative exception.
updated NSNumber error message
Merge branch 'master' into jp-nsnumber-error

* master:
  - Realm-Xcode6 universal iOS framework now builds to Release-iphone to not conflict with OSX build - updated CHANGELOG
  mkdir -p Debug
  mkdir -p Release
  sh build.sh ios{-debug} now builds a universal framework when XCODE_VERSION=6

Conflicts:
	CHANGELOG.md
added link to all supported types in NSNumber property exception
Merge pull request #662 from realm/jp-nsnumber-error

Using NSNumber properties (unsupported) now throws a more informative exception