update pry version
add rubocop as dep
add lint task to Rakefile, make it run on build
add linter instructions
add stub rubocop.yml
rewrite gemspec to abide by ruby style guide
more info about linter in README
add English require to gemspec
reduce required ruby version to 1.9.3
increase max method length
fix old hash syntax lint errors
fix lint errors in clever-ruby.rb
fix lint errors in library
fix remainder of rubocop lints
omit parentheses on method invocations when unnecessary
use trivial accessor in page
use double quotes for strings with single quotes in them
0.3.3