- Add pinning feature
- Modify layout for small screen size
- Update parent title when to click the link in iframe
- Update url path of browser when to click the link in iframe
- Bug fix when to access by direct url
- Bug fix of scroll postion of iframe

If application.hide.project.listing is set true at
application.conf, the project list view feature is disabled.

Change yona logo css style name because of google search crawler's
unexpected collecting

Facebook OG tag support just minimal cases.

- Project Home, Issue/Board View Page

- Remove yobi logo
- Change update url
- Add check update option
- Change project/group default bg image
- Change navigation menu style

- change opacity to 35%

- remove help menu
- add my issue and notification menu on top menu
- remove my issue menu in user dropdown menu
- avatar resize to smaller

Twirl warned "Tag '@Author' is not recognised".

When a user search something with a keyword, this commit supports automatically select not-empty resource type.

If there are many not-empty types, select the most top resource type in side menu.
If all resource types are empty, select issue as a default.