Champion skill combinations

[donnyroufs]

Users should be able to add combinations for their champion (Not sure whether we want a seperate "widget" or implement this in the notes)

So for example a full jayce combo would be: mb2>q>e>mb2>r>q>w>mb2>e

There's a prototype that I'm working on that might be an awesome feature for later: http://practice.leaguedex.com