Fix automatic login support.
Refine #clear_login! to be more explicit.
Improve clear_login! to use correct entry and puts instead of print
In clear_login! replace File.open().each with File.read().each_line
Add parentheses in clear_login! for clarity
Merge pull request #9 from jvlcek/fix_login

Fix login
Use a test file instead of /bin/echo in spec.
Merge pull request #10 from jvlcek/fix_spec

Use a test file instead of /bin/echo in spec.