Removing the timestamp

When auto-generating the website using grunt in the
openlayers.github.io repo, we do not need to publish new docs
every time grunt is run, just because the timestamp is updated.
Merge pull request #544 from ahocevar/no-timestamp

Removing the timestamp
Docs align better with examples when not using a container
Merge pull request #545 from ahocevar/no-container

Docs align better with examples when not using a container
Merge branch 'master' of https://github.com/openlayers/ol3 into android_touch
1. Fix bug with ERRORed tile in canvas renderer
2. Allow non-square tile at edge in WebGL renderer