Add translation for Romanian.
FEATURE: Add a plugin callback when editing a post

FIX: Wrap PostRevisor database work in a transaction
FIX: Markdown parser: empty links and bbcode parsed as link refs
FIX: Readd the dismiss keybindings
https://meta.discourse.org/t/new-updated-bar-and-dismiss-new-button-unreachable-by-keyboard/18946/10?u=cpradio
Merge pull request #2734 from cpradio/readd-dismiss-bindings

FIX: Readd the dismiss keybindings
Merge pull request #2731 from Elberet/fix-parser

FIX: Markdown parser: empty links and bbcode parsed as link refs
Merge pull request #2718 from riking/plugin-events

FEATURE: Add a plugin callback when editing a post
Merge pull request #2711 from hydrarulz/localize_romanian

Add translation for Romanian.