Implement features by Harvey

View all link - implement as showing first three researches and
publications, click ‘load all’ to load the rest, click ‘show less’ to
be back to first three researches/publication in people/view page.
add search box for publications filtering - I implemented it by
modifying the code from admin interface. And also add search box for
people and research as well.
removing video/doc/image - implemented in admin interface
Revert "Implement features by Harvey"

This reverts commit 45eba80dfea314d733ef86d15b371e6c7d40761d.