Fix for running gcc-4.8. add notification for Kampbell.

Signed-off-by: FrancisANDRE <zosrothko@orange.fr>

.travis.yml

@@ -15,8 +15,11 @@ before_install:
 services:
   - mongodb
   
-#notifications:
-#  slack: pocoproject:ItIUZvs8aJGyPdaKxIKMnS1t
+notifications:
+  slack: 
+    rooms:
+      - pocoproject:ItIUZvs8aJGyPdaKxIKMnS1t
+      - kampbell:v4ARuptk0ETzwUsKDdV6Gspb#general
 
 env:
   global: TEST_NAME=""
@@ -51,6 +54,8 @@ matrix:
     - env:    TEST_NAME="gcc-4.8 (CMake)"
       compiler: gcc
       script:
+        - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+        - sudo apt-get update -qq
         - sudo apt-get install -qq -y g++-4.8
         - export CC="gcc-4.8"
         - export CXX="g++-4.8"