Respect hotlist clearing setting on buffer switch & message send

Fixes #1035

js/glowingbear.js

@@ -520,7 +520,7 @@ weechat.controller('WeechatCtrl', ['$rootScope', '$scope', '$store', '$timeout',
         // the messages in this buffer before you switched to the new one
         // this is only needed with new type of clearing since in the old
         // way WeeChat itself takes care of that part
-        if (models.version[0] >= 1) {
+        if (settings.hotlistsync && models.version[0] >= 1) {
             connection.sendHotlistClear();
         }
 

js/inputbar.js

@@ -200,7 +200,7 @@ weechat.directive('inputBar', function() {
                 }
 
                 // New style clearing requires this, old does not
-                if (models.version[0] >= 1) {
+                if (settings.hotlistsync && models.version[0] >= 1) {
                     connection.sendHotlistClear();
                 }