Change a test case for the time to JST from GMT.
Fix the typo of a test file name.
Merge pull request #1 from moznion/fix/must_be_JST

Change a test case for the time to JST from GMT.
Merge pull request #2 from moznion/fix/test_name_typo

Fixed the typo of a test file name.
Fixed "problem" JST to GMT.
Revert "Merge pull request #1 from moznion/fix/must_be_JST"

This reverts commit 74d7b17abae69c7db72e3857a6fd412b18678860, reversing
changes made to 1e9c9c4d0df46321e553b8967a27902bbcd6f852.
Fixed the "problem" JST to GMT. Because timezone problem is not only essential but hard. We judged that timezone problem do not suit for pre intern exercise.
Fix a conflict between the problem and HTML.
Merge pull request #3 from moznion/fix/conflicts_between_problem_and_html

Fix a conflict between the problem and HTML.
to_hash廃止
is_deeplyやめる
Merge remote-tracking branch 'upstream/master'
delete disuse to_hash method