Changelog:
============
* Default headers (such as "Content-Type", "Date" and "Server") are now stripped
from recorded files regardless of header name case. Previously, responses recorded from
servers that send lowercase header names (for example over HTTP/2) kept these redundant
headers in the generated file.
* Fixed 'query_param_matcher' mutating the caller's params dict when numeric
values are provided.
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>