v0.0.1-beta3

0.0.1-beta3

• Changed the tagret-frameworks to 'net4.0;net4.5;net4.5.1;net4.5.2;net4.6;net4.6.1;net4.6.2;net4.7;net4.7.1;net4.7.2;netstandard2.0;netcoreapp2.0', and remove the 'System.IO.Ports-4.5.0' dependency from 'net4.6.1';
• Fixed tag spelling mistakes.

v0.0.1-beta2

• Just changed the tag of package.

v0.0.1-beta

0.0.1-beta