Added a travis ci build file

(cherry picked from commit 8eb765b7cd)

.travis.yml

@@ -0,0 +1,3 @@
+language: ruby
+rvm:
+  - "1.9.3"

Gemfile

@@ -1,3 +1,7 @@
 source "https://rubygems.org"
 
 gemspec
+
+group :test do
+  gem 'rake'
+end

README.rdoc

@@ -1,5 +1,9 @@
+
 = REST Client -- simple DSL for accessing HTTP and REST resources
 
+Build status: {<img src="https://travis-ci.org/jcoyne/rest-client.png" />}[https://travis-ci.org/jcoyne/rest-client]
+
+
 A simple HTTP and REST client for Ruby, inspired by the Sinatra's microframework style
 of specifying actions: get, put, post, delete.