Preparing for release 3.0.1
A more complete list of local config values that don't belong in
desired_capabilities. "host" in particular was causing problems for
new versions of iedriver.
Prepare for release 3.0.2
Added cursory Test::Unit details.
use a hash rocket; they're consitent with the rest of our code and work in older setups
warning: don't put space before argument parentheses
Update dependency on sauce-whisk to be pessimistic update
Match default browsers to current Ruby tutorial.

Add options to undefaulted_opts when they're modified.
Pull browser definition tests out of config_spec.rb
Added default browsers to DEFAULT_OPTIONS.
Merge branch 'master' of github.com:sauce-labs/sauce_ruby