improved travis' config

.travis.yml

@@ -13,6 +13,7 @@ compiler:
 
 env:
   - GCC_VERSION="6"
+  - GCC_VERSION="5"
   - GCC_VERSION="native"
   - LLVM_VERSION="3.7"
   - LLVM_VERSION="native"
@@ -25,6 +26,8 @@ matrix:
       env: LLVM_VERSION="native"
     - compiler: clang
       env: GCC_VERSION="6"
+    - compiler: clang
+      env: GCC_VERSION="5"
     - compiler: clang
       env: GCC_VERSION="native"
     - os: linux
@@ -38,6 +41,8 @@ matrix:
   allow_failures:
     - os: linux
       env: LLVM_VERSION="3.7" # "APT mirror was temporary switched off ..."
+    - os: linux
+      env: GCC_VERSION="6"
   #  - os: osx
 
 git:

data/glest_game

@@ -1 +1 @@
-Subproject commit a1e6be21823b1c597129e3c81f4301177c32fba7
+Subproject commit c0c270c5e0ae3c419c9b451abe71d5ab5f29a63e