set longer timeout for travis

spec/spec_helper.rb

@@ -16,12 +16,12 @@ require 'capybara/rspec'
 ## Setting for polterguist.
 require 'capybara/poltergeist'
 Capybara.register_driver :poltergeist do |app|
-  Capybara::Poltergeist::Driver.new(app, timeout: 10)
+  Capybara::Poltergeist::Driver.new(app, timeout: 30)
 end
 Capybara.javascript_driver = :poltergeist
 
 # Set capybara wait time (default: 2)
-Capybara.default_wait_time = 5
+Capybara.default_wait_time = 10
 
 # Requires supporting ruby files with custom matchers and macros, etc,
 # in spec/support/ and its subdirectories.