Adding mongodb_user module.
library/pip: add support for virtualenv's --system-site-packages.
Fix Issue #2025 where templates were not being transfered.
Merge pull request #2030 from cordmata/devel

Fix Issue #2025 where templates were not being transfered.
Merge pull request #1942 from blair/pip-virtualenv-add-system-package-support

library/pip: add support for virtualenv's --system-site-packages.
Merge pull request #1949 from elliotttf/devel

Adding mongodb_user module.
Document :& host notation and using variables with hosts
Merge pull request #2033 from lorin/intersect-pattern

Document :& host notation and using variables with hosts
Cron module upgrades

  - added cron_file attribute: if specified, the file with appropriate
job is created in /etc/cron.d directory. Also, you can store multiple
jobs in one file. state='absent' attribute is handled in the following
way in this case: if after the deletion of the job from the file specified
by cron_file variable the file is empty, the file is deleted, otherwise
not.
  - fixed the behaviour, when the backupfile is saved forever in /tmp
folder, even if the backup= atribute is not set (os.unlink() is called if
backup is not True).
  - added some comments to the unobvious places