Allow channel path to be customizable

We now allow server operators to customize the /r/ part of the channel links
The new config option in the template is commented and the config module validates and will terminate with status 78 if an improper value is used.
We've also dropped some old cruft and uses a more elegant method to assign CHANNEL.name

Resolves #668

www/js/acp.js

@@ -453,8 +453,8 @@ console.log(channels[0]);
     channels.forEach(function (c) {
         var tr = $("<tr/>").appendTo(tbl);
         var name = $("<td/>").appendTo(tr);
-        $("<a/>").attr("href", "/r/" + c.name)
-            .text(c.pagetitle + " (/r/" + c.name + ")")
+        $("<a/>").attr("href", `/${CHANNELPATH}/${c.name}`)
+            .text(c.pagetitle + ` (/${CHANNELPATH}/${c.name})`)
             .appendTo(name);
         var usercount = $("<td/>").text(c.usercount).appendTo(tr);
         count += c.usercount;
@@ -475,7 +475,7 @@ console.log(channels[0]);
             .attr("title", "Unload")
             .appendTo(controlInner)
             .click(function () {
-                if (confirm("Are you sure you want to unload /r/" + c.name + "?")) {
+                if (confirm(`Are you sure you want to unload /${CHANNELPATH}/${c.name}?`)) {
                     socket.emit("acp-force-unload", {
                         name: c.name
                     });

www/js/callbacks.js

@@ -425,23 +425,6 @@ Callbacks = {
 
             if (!CLIENT.guest) {
                 socket.emit("initUserPLCallbacks");
-                if ($("#loginform").length === 0) {
-                    return;
-                }
-                var logoutform = $("<p/>").attr("id", "logoutform")
-                    .addClass("navbar-text pull-right")
-                    .insertAfter($("#loginform"));
-
-                $("<span/>").attr("id", "welcome").text("Welcome, " + CLIENT.name)
-                    .appendTo(logoutform);
-                $("<span/>").html("&nbsp;&middot;&nbsp;").appendTo(logoutform);
-                var domain = $("#loginform").attr("action").replace("/login", "");
-                $("<a/>").attr("id", "logout")
-                    .attr("href", domain + "/logout?redirect=/r/" + CHANNEL.name)
-                    .text("Logout")
-                    .appendTo(logoutform);
-
-                $("#loginform").remove();
             }
         }
     },

www/js/data.js

@@ -19,7 +19,7 @@ var CHANNEL = {
     css: "",
     js: "",
     motd: "",
-    name: false,
+    name: CHANNELNAME,
     usercount: 0,
     emotes: []
 };

www/js/ui.js

@@ -615,17 +615,6 @@ $("#shuffleplaylist").click(function() {
     }
 });
 
-/* load channel */
-
-var loc = document.location+"";
-var m = loc.match(/\/r\/([a-zA-Z0-9-_]+)/);
-if(m) {
-    CHANNEL.name = m[1];
-    if (CHANNEL.name.indexOf("#") !== -1) {
-        CHANNEL.name = CHANNEL.name.substring(0, CHANNEL.name.indexOf("#"));
-    }
-}
-
 /* channel ranks stuff */
 function chanrankSubmit(rank) {
     var name = $("#cs-chanranks-name").val();