oskite/webterm: add JoinUser back
oskite/webterm: add JoinUser back

This commit was lost during kite-api merging. WebtermNew alrady has this
method because it was a new file and didn't get overrided.

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