Initial commit for a 2.0.0 release

Major changes
- Rewrote readme
- Renamed xforty.make to base.make
- Updated distro.make with latest changes
- Removed tag.sh (we just use sem versioning now)
- No longer use profiler library to build install profile
Add core patch that somewhat supports sub-profiles
Rename distro.make to example.distro.make

New filename makes it obvious that the distro.make is just an example.
Add more documentation and structure

- Added some documentation to files.
- Added an examples folder.
- Added a sub_profile example.
- Renamed example.distro.make to distro.make.example.
- Moved distro.make.example into the examples folder.
- Added .example to the example files so drupal wouldn't run them.
- Added Advanced Usage section to readme.
Merge pull request #10 from dkingofpa/7.x

Changes for a 7.x-2.0.0 release.  Added sub-profile functionality.