Ignore local gems installed by 'bundle --path vendor/bundler'

Ignore *~ and *bak, too.

Signed-off-by: ataka <masayuki.ataka@gmail.com>
First try of i18n in en.  #18

Signed-off-by: ataka <masayuki.ataka@gmail.com>
Use i18n(en) instead of writing text directly.  #18

Signed-off-by: ataka <masayuki.ataka@gmail.com>
Use hierarchical i18n en.yml.  #18

*.erb use it.

Signed-off-by: ataka <masayuki.ataka@gmail.com>
Singularize comments.  #18

Union 'comment' and 'comments'.

Signed-off-by: ataka <masayuki.ataka@gmail.com>
Japanese Translation.  #18

Signed-off-by: ataka <masayuki.ataka@gmail.com>
Fix path.  #18

Signed-off-by: ataka <masayuki.ataka@gmail.com>
Add label name defined in post model.  #18

Signed-off-by: ataka <masayuki.ataka@gmail.com>
Set label to 'Submit' button.  #18

Signed-off-by: ataka <masayuki.ataka@gmail.com>