Changed the common version number to 2.0.0-beta which is where we are at currently with Starcounter. We emanate from there.
Kept a snapshot of CommonVersionInfo with the generated current version. Going back to mode where it's always preserved now (to avoid having to always deal with altered files in git).
Changed incorrect path to project-level built binaries in the main project build file.
Added the Starcounter.Errors project, building the assembly with the same name, exposing an API to consume the errorcodes.xml file from .NET.