Added a note to textcasting. "Let's call the things we write and publish on social networks posts. That term has the longest history, it's simple, one syllable, and isn't tied to a particular system. To give them different names on each system -- tweet, toot, skeet -- as if our writing could only be read in one context, isn't imho what writers want. I don't feel that way about my own writing."#A new version of the reallysimple package works around a breaking change in the node-emoji package. #