CCMA extractor used to raise an exception when attempting the download of
a URL featuring multiple languages in the subtitles.
When a single language is available, the field is the expected dict.
When multiple languages are available, a list of dicts is provided.
This commit fixes this issue.
For some reason, provided UTC timestamp does not comply ISO8601, as its
format is YYYY-DD-MM instead of expected YYYY-MM-DD.
This can be checked with the also provided "text" field of
emission date object. Example:
"data_emissio": {
"text": "14/05/2002�21:39",
"utc": "2002-14-05T21:39:28+0200"
}
This commit fixes this behavior.
