editページが開けない問題を修正
若干リファクタ
add gem.
指摘反映
added post controller test.
Merge pull request #81 from kodamaa/add_rspec

Add rspec
added change log file.
remove rdoc.
added log rotate setting.
removed sqlite.
Merge pull request #85 from kodamaa/changelog

CHANGELOGを追加しました and more...
Merge branch 'develop' into edit_bug

Conflicts:
	app/controllers/posts_controller.rb
Merge pull request #79 from kodamaa/edit_bug

Edit bug
Merge branch 'develop' into search_user

Conflicts:
	app/controllers/posts_controller.rb