Merge branch 'release/releases-1.2.4'
Merge pull request #1337 from ether/release/releases-1.2.4

Release/releases 1.2.4
Merge branch 'master' of github.com:ether/etherpad-lite
Load npm before everything else in checkPad.js
Merge pull request #1361 from mluto/fix-checkPad

Load npm before everything else in checkPad.js
fix module links in README.md
Added ability to load the same pad twice with helper.newPad, use this in load-message-tests
Merge pull request #1364 from t-8ch/fix-readme-links

fix module links in README.md
Increased timeouts to make IE9 happy, made button-test more strict
Merge pull request #1365 from mluto/fix-load-message-tests

Fix load message tests
IE8 does not have a string.trim()-function, so use regex..
Merge pull request #1370 from mluto/fix-load-message-IE8

Fixed message-sending in IE8
[html10n] Fix onload event listener (must be attached to window!)
Fix #1367: async.series was lacking callback in checkPad.js
Merge pull request #1372 from marcelklehr/fix/checkPad-async.series

Fix #1367: async.series was lacking callback in checkPad.js
Merge pull request #1371 from ether/fix/ie8-onload-html10n

Fix onload event listener in html10n
Merge pull request #1366 from ether/master

Bring develop up to date with master