The waiter should be configurable to wait for an element specified by selector to be present or to be missing.
User scenario: user wants to make sure the certain element is appeared e.g. as a part of the test setup to verify the single page application page is fully loaded.
The follow up after #150.
The waiter should be configurable to wait for an element specified by selector to be present or to be missing.
User scenario: user wants to make sure the certain element is appeared e.g. as a part of the test setup to verify the single page application page is fully loaded.