1. add <vectors/> tag to page visit reporting message
2. add echo message when extention received message from web page.
3. found root cause of bug "00001", it caused by improper usage of packaging command, to fix it, add --no-strip-xpi option
	cfx xpi --pkgdir=firefox --no-strip-xpi
Merge branch 'master' of https://github.com/hbaaron/ikan