Bump version and update README
Merge branch 'bump-version-1.0.1'
Actuall select the newest rails if unspecified
Support group management with migrations.

The stock references/add_reference are patched to include a grouping:
true option, along with new add/remove_grouping helpers.
Examples
Tweaks for 3.2
Typos
Merge pull request #12 from nathanlws/migration-grouping-helpers

Migration grouping helpers
Clarify need for SQL Layer
Grouping helper needs to pluralize the ref as it (is suppose to) come in singular
React to 4.0.4 API changes
File headers
Version bump
Bump version after release
Fix grouping migration examples
Fixed typo in Rakefile to CLEAN "activerecord"
Merge pull request #15 from ScottDugas/fix-rake-typo

Fixed typo in Rakefile to CLEAN "activerecord" gems
Update dep version
Bump version
More flexible test patching