Created new project for provider tests. Added additional SqlReader tests
S3Reader2 tests complete
Completed Azure tests
Added test class comments
Comment added
Additional azure tests.
Reformatted S3Reader.cs to original formatting
Removed unworkable azure test.
Merge branch 'philip/provider-unit-tests'

Conflicts:
	Tests/ImageResizer.AllPlugins.Tests/ImageResizer.AllPlugins.Tests.csproj
Update Mongo driver to 1.9.2 in integration tests