batch update:
- NSIS installer for Windows
- support themes
- auto start/restart of twister daemon
- new options: "Always on Top" and "Run Minimized"
to fix https://github.com/rogerwang/node-webkit/issues/253 issue and to support future themes with arbitrary width
save window position
use strict
missed icon
Merge pull request #7 from dryabov/master

batch update