Added "skin.right_nav.show_whats_new" to config_service.jsp

[ngocnn1104]

Added skin.right_nav.show_whats_new to config_service.jsp to control the display of "What's new" component in the front-end.

[oplantalech]

PR tested, and it works. Thanks, @ngocnn1104 !

[oplantalech]

@jjgao Can you merge this PR?

[inodb]

Thank you @oplantalech and @ngocnn1104! Could you elaborate what the difference is with setting skin.right_nav.whats_new_blurb to empty and update the docs accordingly? I guess it currently shows the cBioPortal Twitter when skin.right_nav.whats_new_blurb is empty? Thanks!

[oplantalech]

@inodb Is it confusing in the documentation? Currently it states:

Settings controlling the "What's New" blurb in the right navigation bar: you can add any HTML code here that you want to visualize. If the field is left empty, the Twitter timeline will be shown (as long as skin.right_nav.show_whats_new is true, otherwise this section will not be displayed).

So as you mentioned, if you leave skin.right_nav.whats_new_blurb empty, and skin.right_nav.show_whats_new=true, then the "What's new" blurb will show the Twitter timeline. If skin.right_nav.show_whats_new=false, the section will not be shown (regardless of the content of skin.right_nav.whats_new_blurb).

The problem that this PR fixes is that skin.right_nav.show_whats_new=false was still showing the "What's new" section.

[jjgao]

@inodb please feel free to merge once you approve.

[inodb]

@oplantalech thanks for elaborating!