First release.

- Added check for Mediawiki
- Added check for MySQL
- Update pip to at least version 1.2
- Puppet outdated if last run was older than 24 hours
- Only check pmtpa instances
- Use warning for use of local storage instead of error
- Added decorator to check if host is reachable

Change-Id: I859fcff0d72c284c107c4183c697a82195fc8680