congysu

Move the code of v4, v3, v2 sample services to GitHub. http://www.odata.org/odata-services/

https://github.com/OData/ODataSamples/tree/master/WebApi/v4/ODataCapabilitiesVocabularySample https://github.com/OData/ODataSamples/tree/master/WebApi/v4/ODataQueryLimitationsSample

Had a key as segment sample, need add it to the ODataSamples/WebApi

Related page: http://odata.github.io/WebApi/version-constraint-relax-flag/

Move source from http://odatasamples.codeplex.com/ to this repo. Move documentation from https://odatasamples.codeplex.com/documentation to http://odata.github.io/

`System.Web.Http.OData.NHibernate` could be `System.Web.OData.NHibernate`. Also the folder name `/WebApi/v4/NHibernateQueryableSample/System.Web.Http.OData.NHibernate` could be `/WebApi/v4/NHibernateQueryableSample/System.Web.OData.NHibernate`

Port the pull request Empty order by case crash fixed #14 to OData v3 sample.

Implement the read_batch_value: https://github.com/OData/odatacpp-server/blob/10c6989195e58544e3a9d797057d7b8d36567b09/include/odata/core/odata_message_reader.h#L36

https://visualstudiogallery.msdn.microsoft.com/db6b8857-06cc-4f40-95dd-a379f0494f45 The 'Create by' should be Microsoft, similar to: https://visualstudiogallery.msdn.microsoft.com/9b786c0e-79d1-4a50-89a5-125e57475937

in the vsix: WebAPI OData V4 Scaffolding ver. 0.1.2.0 -> OData v4 Web API Scaffolding