Merge pull request #2503 from jitsi/ss_fps

feat(ss_framerate): Add config option for min/max frame rate.

config.js

     // The URL to the Firefox extension for desktop sharing.
     desktopSharingFirefoxExtensionURL: null,
 
+    // Optional desktop sharing frame rate options. Default value: min:5, max:5.
+    // desktopSharingFrameRate: {
+    //     min: 5,
+    //     max: 5
+    // },
+
     // Try to start calls with screen-sharing instead of camera video.
     // startScreenSharing: false,
 

package.json

     "jquery-i18next": "1.2.0",
     "js-md5": "0.6.1",
     "jwt-decode": "2.2.0",
-    "lib-jitsi-meet": "github:jitsi/lib-jitsi-meet#f9644b5c7093d61690e36a008aa7fc96a793234d ",
+    "lib-jitsi-meet": "github:jitsi/lib-jitsi-meet#0dcc8a04915c4fdb6aecabf1b036df58e7fe02fc",
     "lodash": "4.17.4",
     "moment": "2.19.4",
     "nuclear-js": "1.4.0",

react/features/base/tracks/functions.js

 
     const {
         constraints,
+        desktopSharingFrameRate,
         firefox_fake_device, // eslint-disable-line camelcase
         resolution
     } = store.getState()['features/base/config'];
                 constraints,
                 desktopSharingExtensionExternalInstallation:
                     options.desktopSharingExtensionExternalInstallation,
+                desktopSharingFrameRate,
                 desktopSharingSources: options.desktopSharingSources,
 
                 // Copy array to avoid mutations inside library.