Compatibility with Ecto 2 (and Phoenix 1.2) and ex_rm

This is a breaking update

Breaking changes

• Configuration hooks, such as post action hooks now must be defined in the {Module, :function} format. Issue #77
• Ecto 2 is now a hard dependency. This was required due to the coupling of this version and Phoenix 1.2. Issue #98

New stuff

• Addict now allows customizable password encryption strategies (thanks @steveklebanoff!). Issue #93

Enhancements

• Example App with lot's of improvements (thanks @steveklebanoff!). Issue #95