get_hrefs now really, truly supports robots.txt and crawl delay (but
does not cache the robots.txt yet)

manager does not break now if jobs are stupid and callback more than
once
Updating some of the examples that have gone stale
for the razamataz
Merge branch 'master' of github.com:dropdownmenu/forerunner
Committing
Merge branch 'master' of github.com:dropdownmenu/forerunner

Conflicts:
	lib/forerunner.js
Verified that forerunner now works with new connection pool w/o a proxy
Added simple example for testing purposes
Added some proxy examples to aid in testing of the new system