Merge pull request #5 from apelade/timeout_spec_warnclog

run_with_timeout fix, depends on command_line
Merge branch 'command_line' of https://github.com/tansaku/rag-saasbook into grader_cli_specs
changes for gemfile lock on rspec diffs between tansaku and apelade
changes for gemfile lock on rspec diffs between tansaku and apelade