Update to Ember 1.4.0.
Use not minified pusher, it's easier to debut and we minify it anyway
Set all flex vendor attributes when maximized.
Merge pull request #259 from rjackson/update-ember

Update to Ember 1.4.0.
Make "to top" link visible when scrolling through the log

These are the changes by @dmathieu (reverted at d7bef2b) slightly
changed to allow us to use them also on Travis Pro.

The change is to still use onScroll calculations in order to position
elements instead of using "position: fixed". The latter method is harder
to use when element needs to be positioned relatively to other element -
on Pro we would have to still calculate the position because of the
right sidebar.
Remove unneeded console.log
Use outerheight when calculating position to take padding into account