#39 Refined UI and REST API skeleton.

- Use backbone.js MVC more.
- Hide comment when an Evernote account is not connected.
- Do-Nothing REST API for shopComment is added.
#43 done
Merge branch 'evernote' of https://github.com/tejitak/lunchapp into evernote
#43 internationalization
#43 bug fix
#39 Added functions to read/save comment

- Create/Update/Read comment on Evernote.
- Note guid in shop info on MongoDB is not saved yet.
#39 Save a note guid on DB.
 #41 set 10 minutes before next lunch time
#41 fix typo
#39 Hide comment area until shop is clicked.

- Added Show Comment button to shop info.
- Moved comment area under Evernote button.
- Moved category selection under Evernote related contents.
Merge branch 'evernote' of https://github.com/tejitak/lunchapp into evernote
#39 show evernote button on each shop for only logged in user
#39 remove textarea for evernote comments
#42 apply cool design for reminder
#43 minor change
Merge branch 'evernote' of https://github.com/tejitak/lunchapp into evernote
#39 Update comment in CommentView object
#44 add a new getting started section
#39 Removed comment feature and added Log feature
#44 Improved English a bit