The matcher and match rules are used to define and match a url rule. A
rule define a list of string and parameters.
For example, the rule /api/get/{id}/name
Will be mapped by the list of matcher:
str_match for /api/get
param_match for the {id}
and str_match for name
Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>