Log Message:
streamlink: update to 0.4.0

0.4.0 of Streamlink!

114 commits since the last release and a lot has changed.

In general, we've added some localization as well as an assortment of new plugins.

We've also introduced a change for Streamlink to not check for new updates each \ 
time Streamlink starts. We found this feature annoying as well as delaying the \ 
initial start of the stream. This feature can be re-enabled by the command line.

The major features of this release are:

    New plugins added
    Ongoing support to current plugins via bug fixes
    Ensure retries to HLS streams
    Disable update check

Many thanks to all contributors who have contributed in this release!