Merge pull request #302 from mballance-sf/master

Copyright updates and hierarchy view updates
Merge pull request #303 from mballance-sf/master

Hierarchy view update
Merge pull request #304 from mballance-sf/master

Test Updates
Update for 1.5.6 release
- #(nobug) - Correct a bug involving relative include directives: 
  `include "../../foo.svh"