When generating full-path CSS/XPath selectors, elements with id
attributes had their selector appended twice — once in the id branch
(line 30) and again unconditionally (line 50).
This produced selectors like 'body > #main > #main > #target > #target'
instead of the correct 'body > #main > #target'.
Move the append into the else branch so it only fires for elements
without an id (elements with id already append in the if branch).
Includes 2 regression tests.
- `Adaptor` became `Selector`
- `Adaptors` became `Selectors`
- `auto_match` argument/feature became `adaptive`
- `adaptor_arguments` argument became `selector_config`
- `automatch_domain` argument became `adaptive_domain`
- `additional_arguments` argument became `additional_args`
- `storage_adaptors` file became just `storage`
- Renamed both `css_selector` and `xpath_selector` both to `generate_css_selector` and `generate_xpath_selector` for clarity and not interrupting the auto-completion while coding.
- Added `generate_full_css_selector` and `generate_full_xpath_selector` methods