First steps towards a Vagrant box for development/demo

Using ansible. Still not functional
Ignore Vagrant related files
Change box name to 'precise64'
Configure system timezone and php.ini
Make Apache serve baikal and AgenDAV
Create logs directory
Install some missing packages. Install composer dependencies
Fix database settings
Change VM hostname
Ignore temporary backups
Turn some handlers into tasks

They were not really handlers
Import schema just once
Make baikal and AgenDAV play well together
Add a Vagrant development environment

Uses Baikal server as CalDAV backend