Add ReadWriteTimeout property to ServiceClientBase

I added the TimeSpan? ReadWriteTimeout property to ServiceClientBase class to support two different timeout values as HttpWebRequest does.
(The other one is the Timeout property that is already implemented)

The HttpWebRequest.Timeout is the timeout to reach the HTTP server and the ReadWriteTimeout is the additional timeout value to get the response data.

By having this two different timeouts, you can (for example) set the .Timeout to 5000 and .ReadWriteTimeout to a much larger timeout value if you want to download a lot of data and if the url is wrong, or the server is down, you don't have to wait till the long timeout happens.
fixed #508:
added test for grouping by base name
Merge pull request #505 from biliktamas79/patch-1

Add ReadWriteTimeout property to ServiceClientBase
Remove useless trailing space in filename
Fix braindead filesystem assumption. Assuming every filesystem is case-insensitive in 2013: http://goo.gl/tTbgV
Merge pull request #513 from garuma/master

Build fixes
Eliminate default member values from route query

Generating a route from a request DTO currently produces redundant
parameters for value types that are equal to their default value. This
change modifies RouteMember so that it only returns a non-null value to
be contributed to the route if the current value is not equal to that
type's default value.
Unit tests for elimination of default route values

Tests to verify previous commit.
Update README.md
Merge pull request #515 from pdegenhardt/master

Eliminate default member values from route query
Add new DictionarySettings
Fixed name handling in OpenIdOAuthProvider

When retrieving attributes from an OpenID 2.0 source, names were not
being handled well. This change ensures that fullName explicitly uses
the first of "http://schema.openid.net/namePerson",
WellKnownAttributes.Name.FullName, or WellKnownAttributes.Name.Alias to
return a value. Where none of these are present but
WellKnownAttributes.Name.First and/or WellKnownAttributes.Name.Last are
provided, these will be concatenated to infer a fullName.
Merge pull request #518 from pdegenhardt/master

Improve name handling from OpenID 2.0 sources
show full datetime in html endpoint when needed
Android and Mono build fixes
Merge pull request #520 from JonCanning/master

Android and MonoTouch build fixes
Merge pull request #516 from tomaszkubacki/patch-1

show dates with time when necessary
Fix commented auth code in AppHost.cs.pp
Merge pull request #522 from yeurch/nuget-host-auth

Fix commented auth code in AppHost.cs.pp
Add PostFileToUrl overload that can upload a file to a url