Be more lienient with gem dependencies.

.gitignore

@@ -7,3 +7,4 @@
 /pkg/
 /spec/reports/
 /tmp/
+/*.gem

README.md

@@ -1,6 +1,6 @@
 # Chemtrails
 
-[![Build Status](https://travis-ci.com/pivotal/chemtrails.svg?token=GqmN5yv6TyjxnxsoFgEG&branch=master)](https://travis-ci.com/pivotal/chemtrails)
+[![Build Status](https://travis-ci.org/pivotal/chemtrails.svg?branch=master)](https://travis-ci.org/pivotal/chemtrails)
 [![Code Climate](https://codeclimate.com/github/pivotal/chemtrails/badges/gpa.svg)](https://codeclimate.com/github/pivotal/chemtrails)
 [![Test Coverage](https://codeclimate.com/github/pivotal/chemtrails/badges/coverage.svg)](https://codeclimate.com/github/pivotal/chemtrails/coverage)
 
@@ -24,7 +24,7 @@ Or install it yourself as:
 
 ## Usage
 
-Set the location of your config server in the environment:
+Set the location and of your config server in the environment:
 
 ```
 CONFIG_SERVER_URL=http://localhost:8080

chemtrails.gemspec

@@ -9,8 +9,8 @@ Gem::Specification.new do |spec|
  spec.authors = ['Pivotal IAD']
  spec.email = ['[email protected]']
 
- spec.summary = %q{Chemtrails is a gem that integrates with Spring Cloud Config to externalize the configuration of your Rails app.}
- spec.description = %q{Chemtrails is a gem that integrates with Spring Cloud Config to externalize the configuration of your Rails app.}
+ spec.summary = %q{Chemtrails is a gem used to integrate a Rails app with a Spring Cloud Config server.}
+ spec.description = %q{Chemtrails is a gem used to integrate a Rails app with a Spring Cloud Config server.}
  spec.homepage = 'http://github.com/pivotal/chemtrails'
  spec.license = 'MIT'
 
@@ -19,12 +19,12 @@ Gem::Specification.new do |spec|
  spec.executables = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
  spec.require_paths = ['lib']
 
- spec.add_dependency 'rails', '~> 4.1.6'
- spec.add_dependency 'excon', '~> 0.45.4'
+ spec.add_dependency 'rails', '~> 4.0'
+ spec.add_dependency 'excon', '~> 0.45.0'
 
- spec.add_development_dependency 'bundler', '~> 1.10'
- spec.add_development_dependency 'rake', '~> 10.0'
- spec.add_development_dependency 'rspec'
- spec.add_development_dependency 'webmock'
- spec.add_development_dependency 'codeclimate-test-reporter'
+ spec.add_development_dependency 'rake',  '~> 10.0'
+ spec.add_development_dependency 'rspec',  '~> 3.4'
+ spec.add_development_dependency 'bundler', '~> 1.0'
+ spec.add_development_dependency 'webmock', '~> 1.24'
+ spec.add_development_dependency 'codeclimate-test-reporter', '~> 0.5'
 end