Log Message:
get_iplayer: Update to 3.22

Changes:

- Fixed schedule page parsing used for cache updates. This was broken by BBC \ 
changes and manifested as a series of “WARNING: Got 0 programmes...” \ 
messages during cache updates. Your cache will not update without this fix. If \ 
you find that some programmes are still missing from your cache, use \ 
`--cache-rebuild` to perform a full rebuild.
- get_iplayer now recognises previously-unknown programme versions (e.g., \ 
"legal") when the "default" pseudo-version is specified in \ 
the value of the `--versionlist` option.
- The `--pid-recursive-type` option is now applied when only downloading \ 
auxiliary resources (e.g., `--subtitles-only`).
- Fixed programme title extraction with `--pid-recursive` to prevent unwanted \ 
extra text being appended to title in episode listing (e.g., for Proms \ 
programmes).