Move web.config from project root to wwwroot
Merge branch 'release' into dev
A few changes

1. Adding helpers to install an app on IIS and run on top of native module
2. Enabled CoreCLR + Ntlm tests.
Let VS assign a port for the MVC 6.0 project
- also add commented-out connection string for IIS deployment
Clean up - removing work arounds for bugs

1. Removed worked arounds that were previously applied for bugs as they are fixed now.
2. Sorted all using statements. Moved System.* to the top.
3. Fixed some of the code to follow engineering guidelines.
Some more fixes
Enabling native module variations.

These do no run unless a machine has native module setup done and an environment variable named IIS_NATIVE_MODULE_SETUP=true. So the test will get skipped on pretty much on all machines except the ones where we want to run on.
Update tests to use official xunit