Removes Rails 3.2 and 4.1 support

In preparation for Rails 5, which, when it is released, will make Rails
3.2 and 4.1 unsupported.

See:

* http://weblog.rubyonrails.org/2015/12/18/Rails-5-0-beta1/
* https://github.com/thoughtbot/paperclip/issues/2049

.travis.yml

@@ -6,14 +6,8 @@ rvm:
 script: "bundle exec rake clean spec cucumber"
 
 gemfile:
-  - gemfiles/3.2.awsv2.1.gemfile
-  - gemfiles/4.1.awsv2.1.gemfile
   - gemfiles/4.2.awsv2.1.gemfile
-  - gemfiles/3.2.awsv2.0.gemfile
-  - gemfiles/4.1.awsv2.0.gemfile
   - gemfiles/4.2.awsv2.0.gemfile
-  - gemfiles/3.2.awsv1.gemfile
-  - gemfiles/4.1.awsv1.gemfile
   - gemfiles/4.2.awsv1.gemfile
 
 sudo: false

Appraisals

-appraise "3.2.awsv2.1" do
-  gem "rails", "~> 3.2.0"
-  gem "aws-sdk", "~> 2.1.0"
-end
-
-appraise "4.1.awsv2.1" do
-  gem "rails", "~> 4.1.0"
-  gem "aws-sdk", "~> 2.1.0"
-end
-
 appraise "4.2.awsv2.1" do
   gem "rails", "~> 4.2.0"
   gem "aws-sdk", "~> 2.1.0"
 end
 
-appraise "3.2.awsv2.0" do
-  gem "rails", "~> 3.2.0"
-  gem "aws-sdk", "~> 2.0.0"
-end
-
-appraise "4.1.awsv2.0" do
-  gem "rails", "~> 4.1.0"
-  gem "aws-sdk", "~> 2.0.0"
-end
-
 appraise "4.2.awsv2.0" do
   gem "rails", "~> 4.2.0"
   gem "aws-sdk", "~> 2.0.0"
 end
 
-appraise "3.2.awsv1" do
-  gem "rails", "~> 3.2.0"
-  gem "aws-sdk", "~> 1.5"
-end
-
-appraise "4.1.awsv1" do
-  gem "rails", "~> 4.1.0"
-  gem "aws-sdk", "~> 1.5"
-end
-
 appraise "4.2.awsv1" do
   gem "rails", "~> 4.2.0"
   gem "aws-sdk", "~> 1.5"

gemfiles/3.2.awsv1.gemfile

-# This file was generated by Appraisal
-
-source "https://rubygems.org"
-
-gem "sqlite3", "~> 1.3.8", platforms: :ruby
-gem "pry"
-gem "rails", "~> 3.2.0"
-gem "aws-sdk", "~> 1.5"
-
-group :development, :test do
-  gem "activerecord-import"
-  gem "mime-types", "~> 1.16"
-  gem "builder"
-  gem "rubocop", :require => false
-end
-
-gemspec path: "../"

gemfiles/3.2.awsv2.0.gemfile

-# This file was generated by Appraisal
-
-source "https://rubygems.org"
-
-gem "sqlite3", "~> 1.3.8", platforms: :ruby
-gem "pry"
-gem "rails", "~> 3.2.0"
-gem "aws-sdk", "~> 2.0.0"
-
-group :development, :test do
-  gem "activerecord-import"
-  gem "mime-types", "~> 1.16"
-  gem "builder"
-  gem "rubocop", :require => false
-end
-
-gemspec path: "../"

gemfiles/3.2.awsv2.1.gemfile

-# This file was generated by Appraisal
-
-source "https://rubygems.org"
-
-gem "sqlite3", "~> 1.3.8", platforms: :ruby
-gem "pry"
-gem "rails", "~> 3.2.0"
-gem "aws-sdk", "~> 2.1.0"
-
-group :development, :test do
-  gem "activerecord-import"
-  gem "mime-types", "~> 1.16"
-  gem "builder"
-  gem "rubocop", :require => false
-end
-
-gemspec path: "../"

gemfiles/4.1.awsv1.gemfile

-# This file was generated by Appraisal
-
-source "https://rubygems.org"
-
-gem "sqlite3", "~> 1.3.8", platforms: :ruby
-gem "pry"
-gem "rails", "~> 4.1.0"
-gem "aws-sdk", "~> 1.5"
-
-group :development, :test do
-  gem "activerecord-import"
-  gem "mime-types", "~> 1.16"
-  gem "builder"
-  gem "rubocop", :require => false
-end
-
-gemspec path: "../"

gemfiles/4.1.awsv2.0.gemfile

-# This file was generated by Appraisal
-
-source "https://rubygems.org"
-
-gem "sqlite3", "~> 1.3.8", platforms: :ruby
-gem "pry"
-gem "rails", "~> 4.1.0"
-gem "aws-sdk", "~> 2.0.0"
-
-group :development, :test do
-  gem "activerecord-import"
-  gem "mime-types", "~> 1.16"
-  gem "builder"
-  gem "rubocop", :require => false
-end
-
-gemspec path: "../"

gemfiles/4.1.awsv2.1.gemfile

-# This file was generated by Appraisal
-
-source "https://rubygems.org"
-
-gem "sqlite3", "~> 1.3.8", platforms: :ruby
-gem "pry"
-gem "rails", "~> 4.1.0"
-gem "aws-sdk", "~> 2.1.0"
-
-group :development, :test do
-  gem "activerecord-import"
-  gem "mime-types", "~> 1.16"
-  gem "builder"
-  gem "rubocop", :require => false
-end
-
-gemspec path: "../"