go back to disabling wesnothd and campaignd on the gcc build

.travis.yml

@@ -13,7 +13,7 @@ before_install:
     - export TARGETS="wesnoth wesnothd campaignd test"
     - export WML_TESTS=true
     - export CPP_TESTS=true
-#    - if [ "$CXX" = "g++" ]; then export TARGETS="wesnoth"; fi
+    - if [ "$CXX" = "g++" ]; then export TARGETS="wesnoth test"; fi
     - if [ "$CXX" = "g++" ]; then export WML_TESTS=false; fi
 #    - if [ "$CXX" = "g++" ]; then export CPP_TESTS=false; fi
     - if [ "$CXX" = "g++" ]; then time sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y; fi