Updated fogo.go to fix the spelling error.
Added in a method to print a stack trace.
Increased the stack trace buffer size.
Added a default config method to grab a config object with some simple defaults.
FOGO-1 : Panic handler, extracted to it's own method, now being used in other places that need to be handled.
FOGO-2 : Added a simple sanity check on the session key array.  It will still fail if the keys are not long enough, but we want to know that.  I'm just not doing anything with the flash values if the keys are not set.