Add CGIMain
Add success page and error page
Add some validation
Remove commit to avoid SQL Error.
Re-change MySQL info
Implement fetch
Show comments on success page
Add some comments
Make Comment as instance of JSON
Rewrite Comment definition using Persistent
Split DB configuration to individual file.
Implement storeComment using Persistent
Implement comment fetch using Persistent
Fix CGIMain using new Comment
Add migration settings
Remove CommentStorage
Merge branch 'persistent' into develop
Add javascript code template to show comments. close #2
Modify default DB settings
Use slug instead of pageId