[#180] Specify all rake commands for Travis

.gitignore

@@ -1,4 +1,3 @@
-pkg
 *.DS_Store
 *.swp
 *.swo
@@ -7,4 +6,5 @@ pkg
 .bundle
 db/*.sqlite3
 log/*.log
+pkg
 tmp/

.travis.yml

@@ -5,7 +5,7 @@ rvm:
   - 1.9.3
 before_install:
   - gem update --system
-script: "bundle exec rake"
+script: 'bundle exec rake appraisal spec cucumber'
 gemfile:
   - gemfiles/3.0.9.gemfile
   - gemfiles/3.1.0.gemfile

Rakefile

@@ -9,12 +9,12 @@ require 'diesel/tasks'
 require 'rspec/core/rake_task'
 require 'appraisal'
 
-desc "Default: run the specs and cucumber features"
+desc 'Default: run the specs and cucumber features'
 task :default => [:all]
 
 desc 'Test the plugin under all supported Rails versions.'
-task :all => ["appraisal:install"] do |t|
-  exec('rake appraisal spec cucumber')
+task :all => ['appraisal:install'] do |t|
+  exec 'rake appraisal spec cucumber'
 end
 
 RSpec::Core::RakeTask.new(:spec)