Support for dotnet standard 2.0

[1.0.0] - 2018-05-01

Added

• Support for dotnet standard 2.0
• Events to make dependency check exceptions accessible
• Project CHANGELOG

Changed

• Improve project documentation
• Improve Directory Dependency message for directory not found
• Connection string must now be explicitly provided to SqlServer Dependency

Removed

• Dependency on Common.Logging
• Connection string retrieval from app.config at SqlServer Dependency