Making multi-arg logging appear more naturally.

Fix courtesy of @dotnetwise.
Various fixes to platform support.

Removing old build events, improving shim config, updating nuget content
and removing old code.
Minor update to the readme file.
First take at mimosa starter kit for 2.0

-css combining is leaving out some files. not sure why
-need to find out how to tell mimosa to specificly include certain
modules when it creates the optimized build. it cannot detect plugins
and any modules configured only via the router