utils: trim full name of user
utils: trim full name of user

New registered user's last name field is empty which causes a space at
the end of full name.

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