Removed some references to unused attrs.
Bumped version.

Raided data partition leveraging ebs_raid recipe.

New recipe attributes:

   raid (true or false - default: false)
   raid_level (default: 10)
   raid_disk_count (default: 4)
   raid_disk_size (default: 4)
   raid_ebs_type (standard or iops - default: standard)
   raid_mount (default: /data)
   setra (default: 128)

Mongodb:raid should be false for vagrant setup.

For raid level 10, ultimate raid volume size will be:

   (disk_count * disk_size) / 2