fix bug of scope of callback function
assemble sequential execution like this

var s = +new Date();
$('.box')
.cssanimate({ x: 30 }, function() {
    console.log("1", (+new Date()) - s)
})
.cssanimate({ x: 60, duration: 200 }, function() {
    console.log("2", (+new Date()) - s)
})
have been used old plugin name. rename to cssanimate
dont execute callback function if callback is undefined
bug of override
set default to params
remove shortcut from readme
update www/
update TASK
updata parser