If the cache is enabled, the varnish and stunnel will be added between frontend and backend. With this, the connection will be: frontend > varnish > stunnel > backend.

Move Slave Instance out of installFrontendApache implementation

refactor code to use RewriteMap. Now, only one RewriteRule is used to map all rules. All rules is written in a text file and this file is load in apache.conf

refactor code to update each slave instance. The id used for each Slave Instance is created using the reference of object. In addition, now the certificate is generated according to the domain name

refactor __init__.py to be possible pass the domain of apache in parameter_dict and fix vhost profile

Conflicts:
	CHANGES.txt
	component/slapos/buildout.cfg
	setup.py
	slapos/recipe/kumofs/__init__.py
	slapos/recipe/memcached/__init__.py
	slapos/recipe/mysql/__init__.py
	software/kumofs/software.cfg
	software/mysql-5.1/software.cfg

add initial template to generate vhost and refactor __init__.py to generate vhost to each Slave Instance

Curl component was modified because of url not working. Changing it back
to original url.
This reverts commit 4cae8f81.