FSFile: fix append implementation for new kites
FSFile: fix append implementation for new kites

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