Seiga: fix getting artist name
Seiga: support alternate type of direct link url
Don't instantly make a request to get info when using bookmarklet

Currently this is done twice: once when the page first loads (although
this one isn't used) and then a second time asynchronously with
javascript (which is used). This commit removes the first one, improving
upload page load time.
Seiga: fix getting tags
Seiga: fix source uploads not working
Seiga: fix source uploads still not working in some cases
Update seiga and pixiv source tests, and seiga vcr cassettes

fixes #2142
Remove redundant promoter name from user feedback

Feedbacks already keep track of who created them so it doesn't need to
be in the body too
Replace ideographic space with regular space

fixes #2131
Use normalized url for iqdb similar search
fixes #2144
#1866: Fix deviantart regex
#1866: Fix deviantart regex again and support alternate url style
iqdb command fixes
revert importer change
new version
fixes #2130
wip
* Refactor iqdb response collection
Support referrer matching for seiga and da