fix for issue #1 See: https://github.com/rockfield/owa_firefox_addon/issues/1
modify behavior: always notify, even when owa tab is active && don't resset icon/unread counter when activating owa tab && always keep owa tab icon updated with unread messages count
allow user to change delay between new email checks && code clean ups
fix fav icon update condition; update documentation
Add option to allow user to enable/disable favicon and document title updates
Merge pull request #2 from mihai-chezan/master

fix for issue #1 See: https://github.com/rockfield/owa_firefox_addon/iss...