Added proof-of-concept status/roadmap in README.md.
WORK IN PROGRESS. Tried alternate approach to invoking profiles' hooks for hook_install_tasks.

  standard2_install_tasks seems like it's still not being called by standard3
  installs. Needs debugging.

	modified:   ProfileInstaller.php
	modified:   examples/standard2/standard2.install
	modified:   examples/standard3/standard3.install
README.md
Merge remote-tracking branch 'bryanhirsch/master'