Merge pull request #8 from yoichi/JENKINS-17041

[FIXED JENKINS-17041] fix "add some" link for default view
define doCheckViewName() to re-enable form validation
Merge pull request #9 from yoichi/JENKINS-18053

[FIXED JENKINS-18053] define doCheckViewName() to re-enable form validation
fix link to subview in nested view set as default view

Override getUrl() and forces to include nested view path.
It also fixes link to subview's configure page in sidepanel.