Release Name: 0.4.0

Notes:
Safer is an umbrella library, with components designed to make it simple to
verify and improve the safety of your ruby code.  There are at present three
modules under the safer umbrella:

[Safer::IVar]         generates specially-named accessor functions
                               for class instance variables.
[Safer::Protocol]     is used to provide a ruby analogue to
                               Objective-C Protocols (which are similar to
                               Java interfaces, but do not require
                               inheritance).
[Safer::HashProtocol] verifies that a Hash keys follow a defined
			       format.  Intended to help use of Hash objects
			       as keyword parameters.


Changes:
=== 0.4.0 / 2011-10-29

* Safer::IVar functionality moved into Safer::IVarFactory class.
* Safer::IVar is now an instance of Safer::IVarFactory.
* Added DSL interface to Safer::IVarFactory.
* Safer::IVarFactory has pluggable symbol prefix generation.
* Added facility to generate symbols based on last component of class name.