move documentation changes to reStructuredText docs under website.  https://github.com/dotcloud/docker/issues/42
add contributing guidlines md file
remove dulicated text and correct contributing link
Improve the containers unit tests (add error checking)
Remove the options of CmdAttach
Add debug infos
Harmonize the error management. Use fmt.Errorf instead of errors.New
Add some error checking in container monitor
Remove unused variable from container struct
Do not log non-running containers
Fix output in the login command

It was broken because the terminal is in raw mode.

This changeset adds code in the login commmand to do a little bit of
interpretation on the user input (something usually done by the terminal
emulator itself).
Merge remote-tracking branch 'lopter/master'
Merge remote-tracking branch 'origin/264-remove_cmdAttach_option'
Add comments in graph.go
Merge pull request #266 from dotcloud/do_not_log_stopped_container

Do not log non-running containers
Merge pull request #265 from dotcloud/formating_debug_harmonize

Formating debug harmonize
Fix #108, reattach now works properly
Do not close the stdin of the process when the client deattaches himslef
Add unit test for multiple attach / restart
Added a timeout to TestCmdStreamLargeStderr.