Journey's scanner tokenizes the `|` (:OR) operator when scanning route
urls such as `"/:foo|*bar"`. However, the current scanner test does not
have any test cases for the `|` operator. This commit adds a test case
for this particular token.
The scanner in Journey fails to recognize routes that use literals
from the sub-delims section of RFC 3986.
This commit enhance the compatibility of Journey with the RFC by
adding support of authorized delimiters to the scanner.
Fix#17212
Move the Journey code underneath the ActionDispatch namespace so
that we don't pollute the global namespace with names that may
be used for models.
Fixesrails/journey#49.