closes #1535
force update translations.
ephemeral groups - guests
added new privilege "find", added guest meta group, closed #1282
removing allowGuestPosting logic in NodeBB
upgrade script for #1282
Update README.md
I have translated to zh_TW.
latest translations for slovak
Merge branch 'master' of github.com:chiehwen/NodeBB into chiehwen-master
Merge pull request #1533 from akhoury/master

captcha support
infinite scroll refactor
privilege cleanup
fixing language code for viet and thai
Merge branch 'master' of github.com:designcreateplay/NodeBB
fixed meta property to name, for keywords
composer refactor
fix feed crash