Relax versions on dependencies

brakeman.gemspec

@@ -10,8 +10,8 @@ Gem::Specification.new do |s|
   s.files = ["bin/brakeman", "WARNING_TYPES", "FEATURES", "README.md"] + Dir["lib/**/*.rb"] + Dir["lib/brakeman/format/*.css"]
   s.executables = ["brakeman"]
   s.add_dependency "activesupport"
-  s.add_dependency "ruby2ruby", "~>1.2.4" 
-  s.add_dependency "ruport", "~>1.6.3"
-  s.add_dependency "erubis", "~>2.6.5"
-  s.add_dependency "haml", "~>3.0.12"
+  s.add_dependency "ruby2ruby", "~>1.2"
+  s.add_dependency "ruport", "~>1.6"
+  s.add_dependency "erubis", "~>2.6"
+  s.add_dependency "haml", "~>3.0"
 end