Added libnotify to gem list to get notification

Having trouble getting it to show.
Think last time it hadn't actually loaded inside spork so was fooled.
added mysterious watch info from guard file

Notifications now work under spork

from http://stackoverflow.com/a/10164046/10245
updating spork config to match tutorial

http://ruby.railstutorial.org/chapters/static-pages?version=4.0#sec-spork_and_guard
Now starts spork automatically from guard!
updating spork config to match tutorial, missed a bit
Test and remove page specific title for home, ch 4.1