release 4.1.0
use Configuration insted of Config, because it's obsoleted class name
Merge pull request #454 from tdiary/use-configuration

use Configuration instead of Config
Update category.rb

for small memory environment.
Merge pull request #455 from n-kashi/master

Update category.rb
Capitalized duplicated entity keys
removed duplicated keys
Merge pull request #456 from tdiary/duplicated-key

Removed duplicated key in Hash data.
fix #458: error on update running on ruby 1.9.3
Merge pull request #460 from tdiary/fix/458_error_on_ruby193

fix #458: error on update running on ruby 1.9.3
exclude UncategorizableDiary class to list styles
removed trunk version of eventmachine, it works with Ruby 2.2.0
bundle update
fixed load path of additional gems
added spec
fix setup block for gem directory
Merge pull request #461 from tdiary/fix-load-path

fix #457: load path for full package
call extensions setup before the core setup (fixed #442)
fix error using omniauth with base_dir
remove github authentication