Full release v2.0.0

This is a major rewrite compared to 1.1.0
with many breaking changes.

Second beta of v2.0.0 rewrite

This includes some docs and automation/CI fixes.

First beta release of v2.0.0 rewrite

Further work #278 - Add required nuget source param

Further work on #278 - Fix push command

Provisionally resolve #278 - Add automatic package push

This pushes tagged packages to NuGet, from AppVeyor

WIP #278 - Another attempt to fix packaging script

WIP #278 - Another attempt to fix packaging script

Feature enhancement release

Bugfix release, including strong-naming