Update pootle_js.po

Quick fix for bug #2857
Remove changelog section for hooks API

This change was backed out in the final commit but I missed this doc.
Docs typos

"in tact" -> "intact"
"seperate" -> "separate"
"issueing" -> "issuing"
Increase pip install connection timeout even more

Python 2.5 urllib2/httplib has limited support for timeout, unclear if
that is part of the reason we're still seeing these errors