aspnetboilerplate#960 ValueObject class should be abstract.

Merged docs.

Fixed aspnetboilerplate#1370: Crud App Service should get concrete ty…

…pe in Get method.

Typo fix in document.

Incremented version to 0.11.3.0.

Merge branch 'dev'

Merge branch 'dev'

Fixed template info on aspnet core document.

Merge branch 'dev'

Incremented to v0.10.3.1.