Last commit 017429eef1 broke doclint
tests. Try bots didn't catch this because they were not running doclint
tests.
This patch:
- fixes doclint tests
- starts running doclint tests on travis
This patch:
- gives meaningful names to doclint tests
- supports classes inheritance in documentation linter. When class A
extends class B, all methods of class B are added to documentation of
class A.
This is a prerequisite for Object Handles: ElementHandle will be
extending ObjectHandle.
References #382