Add support for parameterized classes (puppet 2.6+ support)

[drwahl]

Sine puppet 2.6, classes can be parameterized. This pull request provides the setup.py and add_node.py the ability to store class parameters in the database. This change required that I removed the ability to supply multiple classes on a single pass, so to add more than one class, you will have to run the add_node.py (with -a append) or setup.py once for each class you wish to add. Below is an example of adding a parameterized class:

./setup.py -a new -c ntp -m servers=1.1.1.1

Which will return:

classes:
ntp:
servers:
- 1.1.1.1

Another example, but with adding multiple parameters for a single class:

./setup.py -a new -c ntp -m servers=1.1.1.1,servers=2.2.2.2,servers=192.168.1.1

Which will return:

classes:
ntp:
servers:
- 1.1.1.1
- 2.2.2.2
- 192.168.1.1

You can also add multiple parameters to a single class in one pass:

./setup.py -a new -c ntp -m servers=1.1.1.1,servers=2.2.2.2,servers=192.168.1.1 -m auth=disable -m broadcastclient

Which will return:

classes:
ntp:
auth:
- disable
servers:
- 1.1.1.1
- 2.2.2.2
- 192.168.1.1

A couple other minor changes:

• Check FHS compliant location for config file (/etc/mongo-enc/conf.ini)
• A basic spec file to build an RPM

[drwahl]

Use a server that is likely to be more useful globally as the default mongodb_servers