Fix disappearance of debug banner when running meteor debug.

This was broken due to a change in Node.js which enabled support for
using `--debug` in combination with IPv6 addresses.

tools/inspector.js

@@ -145,7 +145,7 @@ DEp.connectToChildProcess = function connectToChildProcess(child) {
   // port (not debugPort!), and create a connection to that port so that
   // the child process can communicate with node-inspector.
   child.stderr.on("data", function onData(buffer) {
-    var match = /debugger listening on port (\d+)/i
+    var match = /debugger listening on .+:(\d+)\n/i
       .exec(buffer.toString("utf8"));
     if (match) {
       child.stderr.removeListener("data", onData);

tools/runners/run-app.js

@@ -106,7 +106,7 @@ _.extend(AppProcess.prototype, {
 
     eachline(self.proc.stderr, 'utf8', async function (line) {
       if (self.debugPort &&
-          line.indexOf("debugger listening on port ") >= 0) {
+          line.indexOf("Debugger listening on") >= 0) {
         Console.enableProgressDisplay(false);
         return;
       }