Kill programmer if upload takes more than 5 minutes

Fixes #5672

Author: facchinm

arduino-core/src/cc/arduino/packages/Uploader.java

@@ -132,8 +132,8 @@ protected boolean executeUploadCommand(String command[]) throws Exception {
       new MessageSiphon(process.getErrorStream(), this, 100);
 
       // wait for the process to finish, but not forever
-      // kill the flasher process after 2 minutes to avoid 100% cpu spinning
-      if (!process.waitFor(2, TimeUnit.MINUTES)) {
+      // kill the flasher process after 5 minutes to avoid 100% cpu spinning
+      if (!process.waitFor(5, TimeUnit.MINUTES)) {
         process.destroyForcibly();
       }
       if (!process.isAlive()) {