Slow performance downloading large files

WriteTo(this Stream inStream, Stream outStream) writes to outStream with
a 4Kb buffer. Downloading large files(+1Mb) is very slowly because is
sending chunks of 4kb to the client. Writing with a bigger buffer
increases the performance.
Update latest dlls
Add async load test for async downloading of pdf bytes
Add RequiresRole service to test AuthSecret test
Update IdUtils to allow the PK attribute to take precendence over the Id name convention.
Merge pull request #882 from tapmantwo/master

Update IdUtils to allow the PK attribute to take precendence over the Id...
move automapping tests to SS.Text
Update SS.Text dll
Block if there are any ResponseFilterAttributes for async Task responses
Improve handling of disposables in async Filters and Services
Ensure async services are executed synchronously when processed by MQ Services
Update min dependency version to match current version in *.nuspec's
Specify version numbers on all NuGet dependencies
Revert to using 1.x of AWSSDK
Add Headers support to AsyncServiceClient
Fix build errors when running Xamarin Studio (Indie + Business).
Merge pull request #883 from hardye/android-fixes

Fix build errors when running Xamarin Studio (Indie + Business).
Add test using RequestFilter
Provide more flexible strategies for customizing queue names
Add OrmLite.SqlServer NuGet dependency to the Host project apps