allow Ruby 1.8 to fail on Travis
fix README [ci skip]
fix all RuboCop offenses
fix guard-rspec version dep
add guard-rubocop
add rubocop tasks
turn off verbose outside Travis
use 1.9 hashes
do not bother testing with Ruby 1.8
minor fix for Ruby 1.8
Merge pull request #1 from e2/use_rubocop

use RuboCop and Guard::RuboCop