Merge pull request #1 from sgourichon/master

Import howto from http://askubuntu.com/a/432253/68124 .
added feature to restart pulseaudio if connecting to dbus fails ten times, resolves #3
added autostart-feature and installation makefile, closes #2
fixed world-writable pidfile
Why apply-equalizer ?
Merge pull request #5 from sgourichon/doc-why-apply-equalizer

Added more information to README