Re: Confluence. I was at the same point about a year ago and wrote a small python script that posts pages that I write locally in vim to Confluence:
https://github.com/SabbathHex/confluence_poster
The downside is that due to Atlassian limitation and phasing out of wiki markup it's not possible to retrieve articles from Confluence. This script is not suitable for collaborative editing of the same page.
Script is quite ugly, but gets the job done.