Fixed the syntax of QueryRaw as it didn't work

//When I try this 
var response = client.Search(func);

//This worked if the definition of func was
Func<SearchDescriptor<dynamic>, SearchDescriptor<dynamic>> func = s => s
               .AllTypes()
               .From(0)
               .Size(5)
               .QueryRaw(@"{""match_all"": {} }")
               ;

//This didn't work if the definition of func was
            Func<SearchDescriptor<dynamic>, SearchDescriptor<dynamic>> func = s => s
                .AllTypes()
                .From(0)
                .Size(10)
                .QueryRaw("\"match_all\" : { }")
);
Modify code generation to persist removed endpoints

Before this change, endpoints that were removed from newer versions of the
REST spec were subsequently removed from the low-level clients generated
classes as well.  We need to keep these endpoints in order to maintain
backwards compatibility with older versions of elasticsearch.

All endpoints are now kept in the `ApiEndpoints` folder.  This folder
always contains the state in which the low-level client was generated
from.  Since files are never deleted from this folder, when an endpoint
is removed from the REST spec, it's file will still remain.

When `useCache` == true, we skip downloading of the REST spec and generate
directly from the existing contents of `ApiEndpoints` directory.

This change requires that the `ApiEndpoints` folder and it's contents are
always checked in.
Checking in current endpoint json files
Low-level client now generated from the 1.4 spec
Doc fix
fixed build but bwc questions remain
fix #1080 keep track off timeout over multiple delegated calls into cluster
Merge pull request #1085 from mvpspl619/patch-1

Doc fix
Merge pull request #1077 from anshudutta/develop

Fixed the syntax of QueryRaw as it didn't work
Merge pull request #1082 from elasticsearch/feature/improve-codegeneration

Feature/improve codegeneration
Merge pull request #1093 from elasticsearch/fix/max-retry-timeout

Do not retry when timeout is hit