add files for travis and coveralls and badges in README

.coveralls.yml

@@ -0,0 +1 @@
+service_name: travis-ci

.travis.yml

@@ -0,0 +1,17 @@
+language: ruby
+script: rake ci 
+rvm:
+  - 2.1.1
+  - 2.0.0
+  - 1.9.3
+#  - ruby-head
+  - jruby-19mode # JRuby in 1.9 mode
+  - jruby-head
+notifications:
+  email:
+    - [email protected]
+    - [email protected]
+
+env:
+  global:
+    - NOKOGIRI_USE_SYSTEM_LIBRARIES=true

README.md

@@ -1,12 +1,14 @@
 # Blacklight::Hierarchy
+[![Build Status](https://travis-ci.org/sul-dlss/blacklight-hierarchy.svg?branch=master)](https://travis-ci.org/sul-dlss/blacklight-hierarchy) [![Coverage Status](https://coveralls.io/repos/sul-dlss/blacklight-hierarchy/badge.png)](https://coveralls.io/r/sul-dlss/blacklight-hierarchy) [![Dependency Status](https://gemnasium.com/sul-dlss/blacklight-hierarchy.svg)](https://gemnasium.com/sul-dlss/blacklight-hierarchy) [![Gem Version](https://badge.fury.io/rb/blacklight-hierarchy.svg)](http://badge.fury.io/rb/blacklight-hierarchy)
 
 This plugin provides hierarchical facets for [Blacklight](https://github.com/projectblacklight/blacklight).
 
 ## Usage
 
 Add the plugin to your Blacklight app's Gemfile
 
-    gem 'blacklight-hierarchy', :git => '[email protected]:sul-dlss/blacklight-hierarchy.git'
+    gem 'blacklight-hierarchy'
+    #gem 'blacklight-hierarchy', :git => '[email protected]:sul-dlss/blacklight-hierarchy.git'
         
 Index your hierarchies in colon-separated list. For example, items in a "processing" queue with a "copy" action, might be indexed as