WIP Installation Improvements

Installation doc improvements

CommitStream.Web install.md / scripts

Most of this could probably be automated, but first the steps themselves:

• Download/script out required software installation first
  • Add EventStore download (choco install eventstore-oss)
  • Specify to be in bash when using Chocolatey
  • Specify/script the GLOBAL node packages (and explain why) before local packages
• Clone from Github into /c/projects
• Add simple instructions for running eventstore: EventStore.ClusterNode.exe --db ./db --log ./logs --run-projections=all
  • Leave running
• From other winddow: grunt dev

CommitStream.Web.Tests repo README.md

• Higher node version (can 10.9 work?)
• Parallel to CommitStream.Web
• Move the CS_ROOT_URL... local test command FIRST not after the "default"
• Need npm install step documented