clean-up branch

remove unlicensed font

update legal notice

add login button image to bundle

authorization failed handling

check for empty username/pw
fine tune auto-scroll to textfield on keyboard did show notification

layout updates

correct autoscroll on keyboard show/hide relative to device orientation

y-offset value explanation

final layout tweaking

px pushing

textfield inset

inner shadows on labels

clean

remove unused stuff

textfield frame vs clear button frame

ui tweas
facebook sign in

remove scope param from request