Diagnostics page now reports list of installed HttpModules.
Switched from IPipelineConfig.AsyncModuleInstalled to bool? IPipelineConfig.UsingAsyncMode (which populates based off installed module list).
DiskCache now self-configures based on IPipelineConfig.AsyncModuleMode.
SourceDiskCache now has async support.
Update ImageResizer.sln to include ImageResizer.Storage plugin so this can be built.