Add a beatport extension

We should do better integration later. (there is a huge API for
beatport). Doesn't currently work for me.
add eqpresets plus

from https://github.com/Azraeht/COMETE-Equalizer
Remove cclutter and make restore smarter

Remove default clutter and make the reastore function only restore the
default presets and not delete the existing ones. Also update the
current preset if it's a default preset.
Fix updating current preset
Fix restoring and improve deleting
Fix input field value
Remove unnecessary alert
Fixed Bandcamp and Beatport side-by-side installation
Merge pull request #16 from freaktechnik/master

Add Beatport and make Bandcamp compatible with Beatport