Focus On Textbox

Adds an outline around textboxes, inputs and selects when they are in focus; Known bugs: - some issues with autocomplete extension; - unsuitable look on some skins where textboxes/inputs are rounded (like Z1-glass); same look on all rounded boxes (for example deviantart login, search); - bad look when opera password manager adds a yellow inner shadow for textboxes; - bugs with some user css styles; Thank you all for feedback and support. It's all very much appreciated :)