Added fabric.yaml to send configurations to fab

The idea is to separate resource spawner (using spawn_resources.sh)
and deployment (fab) completely so both of them can run
independantly if required.

1. Changed spawn_resources.sh
  1a. SetupHiera function has changed
       Added more hiera configurations
       changed the yaml file to fabric.yaml
         this file will be configuration to fab
  1b. Added all puppet code under $tmp/jiocloud_puppet_builder
       this was there before, but somewhere this got reverted
2. Changed fabfile.py
   2a. Added decorator @task so that only subset of functions
        are set as fab tasks
   2b. Replaced the code to define fab roles to use fabric.yaml
         instead of argument
   2c. Added fabConfig task to read fabric.yaml and configure fabric
       It also generate user.yaml using genUserHiera fucntion
   2d. added genUserHiera function to generate user.yaml
   2e. Changed initiateSetup function
        copy fabric.yaml to cloud lb node,
        use env.hosts instead of env.host - env.hosts is used
           as hosts variable in fab.
        changed inner fab call to use fabconfig
Merge pull request #25 from hkumarmk/fab_gen_user_yaml

Added fabric.yaml to send configurations to fab