updated index.html with additional Vagrant boxes and included additional links to the documentation for each VM (these are complex builds)
Merge branch 'master' of https://github.com/devopera/vagrantboxes-heroku into devopera-master

Conflicts:
	www/index.html
Merge branch 'devopera-master' - this closes #291 which merges in https://github.com/devopera/vagrantboxes-heroku/commit/ce50ed51edf3a7d3ff46daa80853b3885c2c52a8