Update makefile and strip binary

We see the INCLUDES var warning on recent distributions
api: add support for websocket calls

Allow to directly get api data in HTML5

Tested on Chrome... IE>=10 required but seems buggy on connection close...

Unlike what i made in ccminer (graph), the sample show summary data...

Signed-off-by: Tanguy Pruvot <tanguy.pruvot@gmail.com>