GS Plugin Installer

[HelgeSverre]

it's my fork. try origin plugin "simple-contact" and report

That will work fine, it's the Simple Contact Fork which has a problem: the ZIP file contents from Extend only include the subdirectory contents, not the main file and the subdirectory itself. With a manual install, there'd be the same problem.
To make it work you have to download Simple contact first, then overwrite the contents inside the simple_c folder.
Preferably wakh would update the ZIP in Extend though.

PS
+1 for themes. it's must have feature

-1 for themes, it's a plugin installer. You can have many plugins but only one active theme, and themes are possibly quite large (assets),  or some themes come packed with plugins (cf. Timbow's) which could cause duplicate contect and mess of files. 
I'm all for it, but rather as an extension to this plugin (or a different one with the same base) than in the core.

@Helge noticed an oddity with search: eg, when I look for GS custom settings, it's only the 7th result.
Apparently the search:
 - doesn't give precedence to a full match
 - gives precedence to plugin descriptions vs. titles




I'll look into why datatables is not giving precedence, thanks!