Packaging|ubuntu, issue #601: Allow packaging prerm to do its job
Display containers logs in case of build failure
Improve last log output
Ignore stderr while doing tests
do not merge hostname from image
Cleaning up the welcome page, terminology.
Adding files for terms
Clean up image text, minor updates to docs.
More unit test fixes

- Fix TestGetImagesJSON when there is more than one image in the test
  repository;
- Remove an hardcoded constant use in TestGetImagesByName;
- Wait in a loop in TestKillDifferentUser;
- Use env instead of /usr/bin/env in TestEnv;
- Create a daemon user in contrib/mkimage-unittest.sh.
Merge pull request #1099 from lopter/master

*Test :  Fix
add sleep in tests and go fmt
Merge pull request #1101 from dotcloud/fix-unit_tests

add sleep in tests and go fmt
Merge pull request #987 from dotcloud/601-packaging-ubuntu

Packaging|ubuntu, issue #601: Allow packaging prerm to do its job
When no tag is specified in docker pull, skip images that are not tagged
Merge pull request #1103 from shin-/1060-pull-only-tagged-images

*Registry: When no tag is specified in docker pull, skip images that are not tagged
Don't remove the container= environment variable, as it is crucial for a lot of tools to detect, whether they're run inside an LXC container or not.
Merge pull request #1107 from eliasp/issue-1020

* Runtime: Don't remove the container= environment variable.
Cleaning up the welcome page, terminology.
Adding files for terms
Clean up image text, minor updates to docs.