ruby 2.0.0 is EOL

.travis.yml

@@ -2,13 +2,15 @@ language: ruby
 sudo: false
 cache: bundler
 rvm:
-  - 2.0.0
   - 2.1.0
   - 2.1.1
   - 2.1.2
   - 2.1.3
   - 2.1.4
   - 2.1.5
+  - 2.1.6
+  - 2.1.7
+  - 2.1.8
   - 2.2.0
   - 2.2.1
   - 2.2.2

README.md

@@ -92,7 +92,7 @@ WPScan comes pre-installed on the following Linux distributions:
 
 Prerequisites:
 
-- Ruby >= 2.0.0 - Recommended: 2.3.0
+- Ruby >= 2.1.0 - Recommended: 2.3.0
 - Curl >= 7.21  - Recommended: latest - FYI the 7.29 has a segfault
 - RubyGems      - Recommended: latest
 - Git

lib/environment.rb

@@ -3,8 +3,8 @@
 require 'rubygems'
 
 version = RUBY_VERSION.dup
-if Gem::Version.create(version) < Gem::Version.create(2.0)
-  puts "Ruby >= 2.0.0 required to run wpscan (You have #{version})"
+if Gem::Version.create(version) < Gem::Version.create(2.1)
+  puts "Ruby >= 2.1.0 required to run wpscan (You have #{version})"
   exit(1)
 end