fix options undefined
Add Misc.copyProperties and Misc.getAbsolutePosition
Make input.js use Misc.getAbsolutePosition
add tips.md
make games list only games that have a client, ie, a game running
add bricks.png for jumpjump
make jumpjump touch controls work plus a bunch of other shit
fix typo
make jump require player to release button after character has landed
fix typo