fix missing command in irc bouncer example
Move the attach prevention from server to client
Remove Run race condition
fix docker version git output
* API: Add tag lookup to history command. Fixes #882
Update documentation
Packaging, issue 919: Bump version to 0.4.2
Fixed on documentation.

* replaced previously removed concepts/containers and concepts/introcution by a redirect
* moved orphan index/varable to workingwiththerepository
* added favicon to the layout.html
* added redirect_home which is a http refresh redirect. It works like a 301 for google
* fixed an issue in the layout that would make it break when on small screens
Merge pull request #920 from dotcloud/919-packaging

Packaging, issue 919: Bump version to 0.4.2
Merge pull request #914 from ToothlessGear/fix-version-output

* Client: Fix docker version's git commit output
Merge pull request #921 from dhrp/docs-redirects-and-fixes

Fixes on documentation. LGTM
Merge branch 'master' into race_attach-fix
Remove useless goroutine
* API: Send all tags on History API call
Nicer output for 'docker build'
Merge pull request #926 from josephholsten/fix-znc-example

- Documentation: fix missing command in irc bouncer example
Fix incorrect docs for 'docker build'
Updated FIXME
Merge pull request #918 from dotcloud/hisotry_lookup

Add image lookup to history command
Merge pull request #927 from dotcloud/nicer-build-output

* Builder: nicer output for 'docker build'