Change AF dependency to > 4.1. Bump to version 0.0.6

hydra-mods.gemspec

@@ -1,17 +1,16 @@
 $:.push File.expand_path("../lib", __FILE__)
-# require "hydra-head/version"
 
 Gem::Specification.new do |s|
   s.name = 'hydra-mods'
-  s.version = '0.0.5'
+  s.version = '0.0.6'
   s.platform = Gem::Platform::RUBY
   s.authors     = ["Matt Zumwalt, Bess Sadler, Julie Meloni, Naomi Dushay, Jessie Keck, John Scofield, Justin Coyne & many more.  See https://github.com/projecthydra/hydra-head/contributors"]
   s.email       = ["hydra-tech@googlegroups.com"]
   s.homepage = 'http://projecthydra.org'
   s.summary = "Hydra MODS components split out from hydra-head"
   s.description = "Hydra MODS components split out from hydra-head"
 
-  s.add_dependency 'active-fedora', "~>4.1"
+  s.add_dependency 'active-fedora', ">4.1"
   s.add_development_dependency "rspec"
   s.add_development_dependency "mocha"
   s.add_development_dependency "rspec-rails"