Relax bundler dependency

Author: etagwerker

next_rails.gemspec

@@ -24,7 +24,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_dependency "colorize", ">= 0.8.1"
-  spec.add_development_dependency "bundler", "~> 1.16"
+  spec.add_development_dependency "bundler", ">= 1.16", "< 3.0"
   spec.add_development_dependency "rake", "~> 10.0"
   spec.add_development_dependency "rspec", "~> 3.0"
   spec.add_development_dependency "simplecov", "~> 0.17.1"