 Merge branch 'master.mixpanel' into 'master'
 Merge branch 'master.mixpanel' into 'master'

Master.Mixpanel

Sinan, we're having a problem with mixpanel missing entries, so I'm trying to debug it by forcing it to log directly or throw an error if `mixpanel` isn't defined.

acbodine/koding,sinan/koding,koding/koding,gokmen/koding,jack89129/koding,cihangir/koding,kwagdy/koding-1,alex-ionochkin/koding,andrewjcasal/koding,rjeczalik/koding,acbodine/koding,szkl/koding,acbodine/koding,szkl/koding,usirin/koding,usirin/koding,alex-ionochkin/koding,koding/koding,drewsetski/koding,drewsetski/koding,koding/koding,andrewjcasal/koding,jack89129/koding,rjeczalik/koding,jack89129/koding,andrewjcasal/koding,sinan/koding,szkl/koding,kwagdy/koding-1,mertaytore/koding,cihangir/koding,kwagdy/koding-1,gokmen/koding,rjeczalik/koding,rjeczalik/koding,acbodine/koding,rjeczalik/koding,drewsetski/koding,drewsetski/koding,drewsetski/koding,mertaytore/koding,andrewjcasal/koding,jack89129/koding,andrewjcasal/koding,acbodine/koding,alex-ionochkin/koding,jack89129/koding,szkl/koding,alex-ionochkin/koding,koding/koding,gokmen/koding,rjeczalik/koding,szkl/koding,andrewjcasal/koding,mertaytore/koding,cihangir/koding,koding/koding,cihangir/koding,cihangir/koding,jack89129/koding,cihangir/koding,kwagdy/koding-1,usirin/koding,sinan/koding,jack89129/koding,usirin/koding,kwagdy/koding-1,szkl/koding,sinan/koding,szkl/koding,koding/koding,acbodine/koding,mertaytore/koding,cihangir/koding,drewsetski/koding,gokmen/koding,drewsetski/koding,drewsetski/koding,sinan/koding,alex-ionochkin/koding,szkl/koding,gokmen/koding,usirin/koding,mertaytore/koding,jack89129/koding,acbodine/koding,usirin/koding,kwagdy/koding-1,kwagdy/koding-1,mertaytore/koding,sinan/koding,sinan/koding,usirin/koding,alex-ionochkin/koding,andrewjcasal/koding,gokmen/koding,rjeczalik/koding,gokmen/koding,usirin/koding,mertaytore/koding,sinan/koding,cihangir/koding,alex-ionochkin/koding,alex-ionochkin/koding,kwagdy/koding-1,gokmen/koding,rjeczalik/koding,mertaytore/koding,andrewjcasal/koding,koding/koding,acbodine/koding,koding/koding