updated casing for VBoxManage
Merge pull request #14 from PMcGoldrick/vagrant_utils

updated casing for VBoxManage
update dnsmasq files after startup to force sync of files with database
Merge pull request #15 from kswia/feature/occamengine-dhcp-update

update dnsmasq files after startup to force sync of files with database
Updated for running demo on osx.

- Added gitignore entries for miscellaneous untracked files
- Updated ruby version to 2.1.2 (should work!)
- Added rbenv-gemsets for rbenv's
- Renamed rst files for all lowercase for consistency with underscore
  naming conventions
- Added all *.rst files to rake doc:build task
- Added images of expected vbox network configuration for verification
Updated documentation.

Also added to gitignore and the exclude list for the tar occam archive.