added support for DotNet 4.5, 4.6, NetStandard1.3, 1.4, 1.5,1.6 and a…

…dded new sample console project for DotNet4.6

upgraded to netstandard2.0

updated to .Net Standard / Core 2.0.0

added travis ci status to README

upgraded to Visual Studio 2017 and pushed version 2.2.0 to Nuget

merge to fix #14

fixed several issues including fire and forget and dashboard and upda…

…ted some dependencies, more cleanup

code cleanup, migrated to dotnet core, builds for dnx46, dnx451, net4…

…5, net451, net452, net46, net461, netcoreapp1.0, netstandard1.6

package upgrade, merge, code cleanup, and release 1.8