Disable travis irc notifications

travis is much to verbose for that, with random IEs constantly failing
Switch comedycentral IE to http downloads
Add tests for ComedyCentral IE
fix ComedyCentral IE in Python3
read -n is bash-specific
release 2013.01.06
Simplify Makefile
correct quoting
Do not check in test_coverage
Fix tar target (--exclude-vcs is not supported everywhere, and reading . while writing to it can fail randomly)
justin.tv tweaks

- download all parts of a broadcast, fixes #614
- set "uploader" variable to channel_name if available
- catch api errors even if http status is 200
Merge branch 'my-origin/master'
Merge pull request #621 from atomizer/master

justin.tv tweaks
release 2013.01.08
Fix broken ffmpeg (Closes #623)
Support --audio-format=opus
Correct documentation (Closes #625)
Add Makefile in tarball (Closes #626)
release 2013.01.11
Less git acrobatics in devscripts/release.sh