note parsing

This is still for advanced users, but if you know the downloader system, feel free to try it out!

Note parsing works now! All the downloaders have note import options, there's a defaults system, and it is all wired into the parsing system. The main remaining limitation is the parsing system still can't handle multi-line text, but if you make a note parser and download, it now gets added to the file. If you are a downloader maker, please try it out and let me know where it falls short. I intend to get multi-line parsing working in the coming weeks, and then I will update the default parsers for hydrus to grab artist notes.

For the defaults, I updated the 'manage default tag import options' dialog to also do note import options, so you can grab and rename notes from specific sites in different ways. The initial defaults I set are fairly simple 'get everything' options. I would like to see how these new systems shake out in the real world, especially as we deploy new downloaders to many users, and maybe I will revisit them.

full list

- note import options:
- the client now has a system to set default note import options. it works exactly the same as default tag import options and shares the same UI, now named _network->downloaders->manage default import options_. you now set tag and/or note import options for a particular domain. I don't think you'll have to touch the note defaults until this system is really going and we learn more about what we want. I have made the initial defaults get all notes with some simple conflict resolution that won't discard any data
- all url pages, watchers, watcher pages, gallery queries, gallery downloader pages, and subscriptions now have a note import options. by default, they are 'default'
- the edit subscription dialog now has a button to set note import options _en masse_
- all the behind the scenes stuff that connects and powers these systems is done. note parsing now works! advanced users, especially downloader makers, are encouraged to play around with this for real. the remaining hurdle is still multiline parsing support
- notes now have a cleaning system before they are saved. to start with this week, they are now trimmed of leading or trailing whitespace or newlines
- .