first pass at a compressor
Fix #15: fix a leak of notes
Update README.md
Improve data-assignable

+ don't use .data but trigger jQuery events
+ Ensure 2 nodes can't be assigned with 2 different keys
assignable: Still using the data because the node can disappear
manage connect/disconnect with persistent mutable map
release locked tracks when user disconnects
Fix #7 : Improve assignment
Improve volume node box
rename "waiting" to "?" and remove the "cn=" part
Merge branch 'master' into gre/deploy