depend on rails < 4

[tampakrap]

studio_api needs to depend on activeresource < 4, one of the following in Gemfile should do it:

gem 'builder', '~> 3.0.0'
gem 'activeresource', '~> 3.2.21'

Otherwise, it tries to connect to https even when only http is used (for Studio Onsite):

irb(main):001:0> require 'studio_api'
=> true

irb(main):004:0> connection = StudioApi::Connection.new('user', 'key', 'http://studioserver/api/v2/user')
=> #<StudioApi::Connection:0x000000030390f0 @user="user", @password="key", @uri=#<URI::HTTP:0x00000003038e98 URL:http://studioserver/api/v2/user>, @proxy=nil, @timeout=45, @ssl={:verify_mode=>0}>

irb(main):007:0> StudioApi::Util.configure_studio_connection connection
=> [StudioApi::Appliance, StudioApi::Build, StudioApi::File, StudioApi::Gallery, StudioApi::Repository, StudioApi::Rpm, StudioApi::RunningBuild, StudioApi::TemplateSet, StudioApi::Testdrive, StudioApi::Appliance::Status, StudioApi::Appliance::Configuration, StudioApi::Appliance::Repository, StudioApi::Appliance::GpgKey, StudioApi::Appliance::Configuration::Firewall, StudioApi::Gallery::Appliance]

irb(main):008:0> templates = StudioApi::TemplateSet.find(:all).find {|s| s.name == "default" }.template
ActiveResource::SSLError: SSL_connect returned=1 errno=0 state=SSLv2/v3 read server hello A: unknown protocol
    from /usr/lib64/ruby/gems/2.1.0/gems/activeresource-4.0.0/lib/active_resource/connection.rb:127:in `rescue in request'
    from /usr/lib64/ruby/gems/2.1.0/gems/activeresource-4.0.0/lib/active_resource/connection.rb:118:in `request'
    from /usr/lib64/ruby/gems/2.1.0/gems/activeresource-4.0.0/lib/active_resource/connection.rb:82:in `block in get'
    from /usr/lib64/ruby/gems/2.1.0/gems/activeresource-4.0.0/lib/active_resource/connection.rb:216:in `with_auth'
    from /usr/lib64/ruby/gems/2.1.0/gems/activeresource-4.0.0/lib/active_resource/connection.rb:82:in `get'
    from /usr/lib64/ruby/gems/2.1.0/gems/activeresource-4.0.0/lib/active_resource/base.rb:966:in `find_every'
    from /usr/lib64/ruby/gems/2.1.0/gems/activeresource-4.0.0/lib/active_resource/base.rb:873:in `find'
    from (irb):8
    from /usr/bin/irb:11:in `<main>'