upgrade jQuery version 1.9.1 -> 2.0.3
fix Gruntfile.js to avoid jshint's error

the error is like below;

[L29:C15] W015: Expected 'files' to have an indentation at 17 instead at 15.
              files: ['<%= yeoman.app %>/*.js'],
[L30:C15] W015: Expected 'tasks' to have an indentation at 17 instead at 15.
              tasks: ['jade:compile']
[L33:C15] W015: Expected 'files' to have an indentation at 17 instead at 15.
              files: ['<%= yeoman.app %>/index.jade'],
[L34:C15] W015: Expected 'tasks' to have an indentation at 17 instead at 15.
              tasks: ['jade:compile']

Warning: Task "jshint:all" failed. Use --force to continue.
Merge branch 'master' into upgrade-jquery
implement a feature of detailOpener button
Merge branch 'upgrade-jquery'