Change to installing rake tasks by requiring file, not running a generator
Rename so tasks live under Spork module
Move to spork/tasks file
Install tasks when file required
Add initialization to make Rake happy
Spell correctly
Rip off bundler's pattern
Actually watch for Spork's port to connect.

Much smarter than guessing and checking. Will timeout if app takes
longer than 20 seconds to start.

Also checks if the port is bound or the process has already started when
running spork:start.