Merge pull request #52 from h5b/master

Drop "sudo -E" when running "bundle install"
Fix Typos in "public/bin/bury.rb".
Merge pull request #54 from h5b/bury

Fix Typos in "public/bin/bury.rb".
Always use the most verbose log level specified

When options --debug and --verbose are specified, use the log level
debug instead of verbose as it includes all messages of the other log
levels.
Merge pull request #58 from Flowm/master

Thanks.