Tweaks

• tweak (1): disable searchbox animation
• tweak (2): remove graphics near username link on header bar
• tweak (3): disable quick report hovercard on header bar
• tweak (4): clear search strings from searchbox
• tweak (5): clear gravatar shadows

Features

• feature (1): an Options page for turning individual tweaks on and off
• feature (2): support for most Stack Exchange sites