* [2chen] Add 2chen.moe extractor
* change "==" to is
* fix for "test_unique_pattern_matches"
* fix regex pattern and group matching
* fix regex again
* [2chen] add 'reply_no' and 'hash' metadata and change 'filename_fmt'
also made an entry in supportedsites.md
* [2chen] unescape 'title'
* [2chen] partition() -> rpartition()
* [2chen] extract 'date' and 'name' metadata
* [2chen] remove 'offset' argument
* [2chen] do some changes
* [2chen] do some more changes
* [2chen] unescape 'name' and 'filename'
f0321f423d