Add API call to mount linprocfs in a jail

I need this for the MineOS (Minecraft Server Hosting Panel) plugin I am writing. I hope this can get in by 9.2.1.7 because my plugin is nearly ready.
Disable this for now until I figure out why it causes problem for
Forth parser.
Auto-Commit of i18n data from Pootle
Merge remote-tracking branch 'github/pr/76'
Merge remote-tracking branch 'upstream/master'