Fill in Usage in README
Send a basic error notification to Yeller
Add stack traces to the exception notification payload
Randomise the Yeller collector hostname at initialisation time
Make hostname fields of yeller.Client private
Extract HTTP and JSON code to client.go
Round-robin between the available Yeller hostnames
Have a 1-second timeout before moving on to a different hostname
Send the application hostname with error notifications
Allow the user to specify an environment for the application
Add yeller.NotifyInfo function for sending custom data
Add TODO file
Fix typo in README
add gitignore and script/test
functions for notifying on panics

Conflicts:
	yeller.go
add http notification functions
notify url if it's there
gofmt
expand README note to cover full http handler example
put url handling code together