Falling back to the sudo builds

.travis.yml

-sudo: false
-addons:
-  apt:
-    packages:
-    - libwxgtk3.0-dev
-    - libgtk2.0-dev
 before_install:
-    - #sudo apt-get update -qq
-    - #sudo apt-get install -y libwxgtk3.0-dev libgtk2.0-dev
+    - sudo apt-get update -qq
+    - sudo apt-get install -y libwxgtk3.0-dev libgtk2.0-dev
     - git show -s --format="wxT(\"<a href=\\\"http://github.com/audacity/audacity/commit/%H\\\">%h</a> of %cd\")"
     - git show -s --format="wxT(\"<a href=\\\"http://github.com/audacity/audacity/commit/%H\\\">%h</a> of %cd\")" > ./src/RevisionIdent.h
 language: