Revert "Remove support for Ruby 1.8.7"

This reverts commit 64fdb05.

Author: sferik

.travis.yml

@@ -1,6 +1,7 @@
 bundler_args: --without development
 language: ruby
 rvm:
+  - 1.8.7
   - 1.9.2
   - 1.9.3
   - 2.0.0

README.md

@@ -68,6 +68,7 @@ then Nokogiri, and finally REXML.
 This library aims to support and is [tested against][travis] the following Ruby
 implementations:
 
+* Ruby 1.8.7
 * Ruby 1.9.2
 * Ruby 1.9.3
 * Ruby 2.0.0

lib/multi_xml.rb

@@ -196,8 +196,9 @@ def symbolize_keys(params)
     def undasherize_keys(params)
       case params
       when Hash
-        params.each_with_object({}) do |(key, value), hash|
+        params.inject({}) do |hash, (key, value)|
           hash[key.to_s.tr('-', '_')] = undasherize_keys(value)
+          hash
         end
       when Array
         params.map{|value| undasherize_keys(value)}
@@ -272,8 +273,9 @@ def typecast_xml_value(value, disallowed_types=nil)
         elsif value['type'] && value.size == 1 && !value['type'].is_a?(Hash)
           nil
         else
-          xml_value = value.each_with_object({}) do |(k, v), hash|
+          xml_value = value.inject({}) do |hash, (k, v)|
             hash[k] = typecast_xml_value(v, disallowed_types)
+            hash
           end
 
           # Turn {:files => {:file => #<StringIO>} into {:files => #<StringIO>} so it is compatible with

multi_xml.gemspec

@@ -16,7 +16,6 @@ Gem::Specification.new do |spec|
   spec.licenses = ['MIT']
   spec.name = 'multi_xml'
   spec.require_paths = ['lib']
-  spec.required_ruby_version = '>= 1.9.2'
   spec.required_rubygems_version = '>= 1.3.5'
   spec.signing_key = File.expand_path("~/.gem/private_key.pem") if $0 =~ /gem\z/
   spec.summary = %q{A generic swappable back-end for XML parsing}