add pipeline support

IPipeline - supports fluent pipeline building, can add AppFunc, MiddlewareFunc, IPipelineComponent
IPipelineComponent - common interface to support setup, connecting, and executing a pipeline
ControlComponents: Delegate, Control, NestedPipeline
Fix the automated build.

Fix build for people without psake installed.
Add Test and Release batch files.
Create SourceCode Packages
Merge pull request #18 from EddieGarmon/issue-16-FixBuild

Fix the automated build.
make App_Packages for source packages plural
Merge pull request #19 from EddieGarmon/FixBuild

make App_Packages for source packages plural
change OwinContext environment key to support source embedding
Merge pull request #21 from EddieGarmon/issue-20-OwinContext

change OwinContext environment key to support source embedding
Support multipart/form-data

Add multipart/form-data support and testing support
Add substream for seekable streams
implement IPostedFile in NativeMiddleware.FormSupport
Organize extension methods
do better async Stream extension methods
add Task extension methods
Organize ReSharper Settings
Move DumpContent to NativeMiddleware
Merge pull request #22 from EddieGarmon/issue-3-FileUpload

add support for multipart/form-data and file uploads
Merge branch 'milestone-v1.0' into issue-7-HostPipeline
cleanup ControlComponent API
Merge pull request #25 from EddieGarmon/issue-7-HostPipeline

Issue 7 host pipeline
update build script for source packages with abstract and partial classes
Rename TcpServer
fix the build
add throw exception in demo
general cleanup

add more properties on OwinHostContext
add OnSendingHeaders to OwinResponse, TcpServer impl still missing
Merge branch 'milestone-v1.0'
version 0.9.0