Merge pull request #1 from elasticsearch/master

Update
Update for new property path
http://www.elasticsearch.org/guide/en/elasticsearch/reference/0.90/mapping-multi-field-type.html#_accessing_fields
Multifield example
Add missing property
Merge branch 'master' into develop

Conflicts:
	docs/contents/nest/indices/put-mapping.markdown
	src/Nest/Domain/Mapping/Types/MultiFieldMapping.cs
	src/Tests/Nest.Tests.Integration/Core/Map/Properties/PropertiesTests.cs
	src/Tests/Nest.Tests.Unit/Core/Map/Properties/PropertiesTests.cs
	src/Tests/Nest.Tests.Unit/Nest.Tests.Unit.csproj