hello angularjs
[fix] fotget to make audio callback singleton
[fix] display problems of [AddTo] button
[fix] forgot to destroy scope when list removed
rename selectedUrl to addToUrl
add bwMain.open & remove listUrl watcher to main
[fix] always use sort setting from local storage
if convert thumb failed, turn to the original
bwMain nolonger save listUrl for itself
refractor interface

we now have: scope.list (bw-list), scope.audio (pl-audio), scope.conf,
scope.browser, scope.tool, scope.select
[add] seekable processbar
[fix] browser.saveAs -> browser.save
slightly enlarge seprator background height
[new] a new buttonbar for path navigation
avoid path nav buttonbar to refresh twice
[fix] save & load of url works now
update auto-select directive
[new] a simple audio analyser (webkit only)