Update Ruby version + README to correct gem

.ruby-version

@@ -1 +1 @@
-ruby-2.2.2
+ruby-2.3

README.md

@@ -1,27 +1,17 @@
 [![Build Status](https://travis-ci.org/PlugaDotCo/nfe_io-ruby.svg?branch=master)](https://travis-ci.org/PlugaDotCo/nfe_io-ruby)
 
-# Nfe
-
-Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file `lib/nfe`. To experiment with that code, run `bin/console` for an interactive prompt.
-
-TODO: Delete this and the text above, and describe your gem
-
 ## Installation
 
 Add this line to your application's Gemfile:
 
 ```ruby
-gem 'nfe'
+gem 'nfe-io'
 ```
 
 And then execute:
 
     $ bundle
 
-Or install it yourself as:
-
-    $ gem install nfe
-
 ## Usage
 
 TODO: Write usage instructions here

lib/nfe/api_resource.rb

@@ -40,7 +40,8 @@ def api_request(url, method, params=nil)
       rescue RestClient::Exception => e
         raise e
       end
-      JSON.parse(response.to_str)
+      return { } if response == nil || response.empty?
+      JSON.parse(response)
     end
 
     def self.included(base)

lib/nfe/nfe_object.rb

@@ -83,11 +83,10 @@ def to_hash
             list.push(obj.respond_to?(:to_hash) ? obj.to_hash : value)
           end
           result[key] = list
-        else if value.respond_to?(:to_hash)
-               result[key] = value.to_hash
-             else
-               result[key] =  value
-             end
+        elsif value.respond_to?(:to_hash)
+          result[key] = value.to_hash
+        else
+         result[key] =  value
         end
         result
       end