Enable Text Media Capture (atm http requests)

Mayor changes:

• Port GTK display to GTK3 (GKT2 still supported)

Minor changes:

• Add WebP image format support
• Add libwebsockets >= 4.3.0 support
• Update autotools version

Minor changes:

• Install the static html files in the package data directory
• Rename the jquery.js file to jquery.min.js
• Remove compatibility fix between libwebsockets and libuv

Fixes:

• Fix path to compat.h header

Minor fixes

• New, http and websockets based, display
• Basic windows support (cygwin)
• New option to list capture interfaces
• Support for putting the interface in monitor mode