relax rake requirement

…and gem install stuff in travis

.travis.yml

@@ -11,6 +11,8 @@ rvm:
 - rbx
 - ree
 install:
+- gem install bundler
+- gem install rake
 - bundle install
 script:
 - uname -s

Gemfile

@@ -2,7 +2,7 @@ source "https://rubygems.org"
 
 group :development do
   gem 'bundler', '>= 1.0'
-  gem 'rake', '>= 11.1.0'
+  gem 'rake'
   gem 'minitest', '~> 5.8', '>= 5.8.4'
   gem 'pry', '>= 0.10.1'
   gem 'travis', '>= 1.8.2'

ipaddress.gemspec

@@ -55,7 +55,7 @@ Gem::Specification.new do |s|
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
       s.add_development_dependency(%q<bundler>, [">= 1.0"])
-      s.add_development_dependency(%q<rake>, [">= 11.1.0"])
+      s.add_development_dependency(%q<rake>, [">= 0"])
       s.add_development_dependency(%q<minitest>, [">= 5.8.4", "~> 5.8"])
       s.add_development_dependency(%q<pry>, [">= 0.10.1"])
       s.add_development_dependency(%q<travis>, [">= 1.8.2"])
@@ -63,7 +63,7 @@ Gem::Specification.new do |s|
       s.add_development_dependency(%q<codeclimate-test-reporter>, [">= 0"])
     else
       s.add_dependency(%q<bundler>, [">= 1.0"])
-      s.add_dependency(%q<rake>, [">= 11.1.0"])
+      s.add_dependency(%q<rake>, [">= 0"])
       s.add_dependency(%q<minitest>, [">= 5.8.4", "~> 5.8"])
       s.add_dependency(%q<pry>, [">= 0.10.1"])
       s.add_dependency(%q<travis>, [">= 1.8.2"])
@@ -72,7 +72,7 @@ Gem::Specification.new do |s|
     end
   else
     s.add_dependency(%q<bundler>, [">= 1.0"])
-    s.add_dependency(%q<rake>, [">= 11.1.0"])
+    s.add_dependency(%q<rake>, [">= 0"])
     s.add_dependency(%q<minitest>, [">= 5.8.4", "~> 5.8"])
     s.add_dependency(%q<pry>, [">= 0.10.1"])
     s.add_dependency(%q<travis>, [">= 1.8.2"])