Clarify that download rate is in bytes per second

I found https://github.com/rg3/youtube-dl/commit/f918ec7ea29a37521d1fc22fb9f900283c5a2c49 but it is still not clear to anyone who hasn't read Issue #723 whether the limit is in bits or bytes.  This is doubly confusing because 1) ISPs usually advertise speeds in bits per second, and 2) lowercase "k" and "m" are often used in correlation with bits rather than bytes.
Extractor for websurg.com
Merge remote-tracking branch 'upstream/master' into websurg
Improvements
[zdf] Add support for hash URLs and simplify (#1518)
Merge branch 'master' of github.com:rg3/youtube-dl
[yahoo] Fix video extraction (fixes #1521)

There's no need to use two different methods.
Now we can also download videos over http if possible.
Also run the test for rtmp videos, but skip the download.
[dailymotion] Disable the family filter in the playlists (fixes #1524)
[update] Look for .exe extension on Windows (Fixes #745)
[update] Prevent cmd window popup on Windows (Fixes #1478)
release 2013.09.29
[appletrailers] Rework extraction (fixes #1387)

The exraction was broken:
* The includes page contains img elements that need to be fixed.
* Use the 'itunes.inc' page, it contains a json dictionary for each trailer with information.
* Get the formats from 'includes/settings{trailer_name}.json'
* Use urljoin to allow urls with a fragment identifier to work

Removed the thumbnail urls from the tests, they are different now.
[appletrailers] The request for the settings must have the trailer name in lower case (fixes #1329)
[rtlnow] Replace one of the tests

The video is no longer available.
implement --no-playlist to only download current video - closes #755
add test for --no-playlist
Support XDG base directory specification
Merge pull request #2 from rg3/master

Update
[RTLnowIE] Add support for http://n-tvnow.de
[RTLnowIE] Allow video description without upload date

Some videos (feature films) have no upload date.