add basic travis config file
add rake as a development dependency
add travis build status
update travis config to test against multiple versions of chef
fix typo in gemfiles directory
update README with chef/ruby/os version info
'show' for an encrypted data bag includes 'stuff' that shouldn't be there. We only need the raw_data.

'knife solo data bag show my_bag my_item --secret-file my_key -F json' fails otherwise since it cannot deserialize the 'stuff' that contains the raw data into json.
add spec for show command with json formatting
update CHANGELOG and bump to 0.2.1
 update README with json format for show command
Fixing create command; create_object does not always return a value
Merge pull request #4 from Nix-wie-weg/create-fix

Fixing create command; create_object does not always return a value
Update CHANGELOG and bump to 0.2.2
Respects knife.rb's 'encrypted_data_bag_secret' option
Merge pull request #5 from skyeagle/master

Respects 'encrypted_data_bag_secret' option in knife.rb
add specs for encrypted_data_bag_secret support
update CHANGELOG
tweak debug output when overriding knife.rb secret
tweak how we output secret override
update README