tDiary 5.6.1

What's Changed

• Keep drafts on the server as well as in Web Storage by @hsbt in #1394
• Upload images pasted or dropped into the diary body by @hsbt in #1395
• Fall back to Rakuten Books for books amazon.rb can't get by @hsbt in #1396
• Move the AMP plugin to tdiary-contrib by @hsbt in #1398
• Let makerss leave the subtitle out of content:encoded by @hsbt in #1399
• Fix the theme gallery and testbench links in HOWTO-make-theme by @hsbt in #1401
• Make the default theme fit smartphone and tablet widths by @hsbt in #1400

Full Changelog: v5.6.0...v5.6.1