Update master Travis to Trusty

This gets us a newer Clang, and newer Go.
1.1.0 already runs on Trusty without issues.

To do this, we need to disable afalgeng in the -Werror build.

afalgeng isn't compatible with the -Werror build on
Travis Trusty due to kernel header mismatch.

(See also 97043e46)
Reviewed-by: NRichard Levitte <levitte@openssl.org>

.travis.yml

+dist: trusty
+sudo: required
+
 language: c
 cache: ccache
 
@@ -10,7 +13,7 @@ addons:
     apt:
         packages:
             - ccache
-            - golang
+            - golang-1.6
 
 os:
     - linux
@@ -21,7 +24,7 @@ compiler:
 
 env:
     - CONFIG_OPTS="" DESTDIR="_install" TESTS="-test_fuzz"
-    - CONFIG_OPTS="no-asm -Werror --debug no-shared enable-crypto-mdebug enable-rc5 enable-md2" TESTS="-test_fuzz"
+    - CONFIG_OPTS="no-asm -Werror --debug no-afalgeng no-shared enable-crypto-mdebug enable-rc5 enable-md2" TESTS="-test_fuzz"
     - CONFIG_OPTS="no-asm --strict-warnings" BUILDONLY="yes" CHECKDOCS="yes"
 
 matrix:
@@ -40,11 +43,11 @@ matrix:
           addons:
               apt:
                   packages:
-                      - clang-3.6
+                      - clang-3.9
                   sources:
-                      - llvm-toolchain-precise-3.6
+                      - llvm-toolchain-trusty-3.9
                       - ubuntu-toolchain-r-test
-          compiler: clang-3.6
+          compiler: clang-3.9
           env: CONFIG_OPTS="--strict-warnings no-deprecated" BUILDONLY="yes"
         - os: linux
           addons:
@@ -68,31 +71,31 @@ matrix:
           addons:
               apt:
                   packages:
-                      - clang-3.6
+                      - clang-3.9
                   sources:
-                      - llvm-toolchain-precise-3.6
+                      - llvm-toolchain-trusty-3.9
                       - ubuntu-toolchain-r-test
-          compiler: clang-3.6
+          compiler: clang-3.9
           env: EXTENDED_TEST="yes" CONFIG_OPTS="enable-msan"
         - os: linux
           addons:
               apt:
                   packages:
-                      - clang-3.6
+                      - clang-3.9
                   sources:
-                      - llvm-toolchain-precise-3.6
+                      - llvm-toolchain-trusty-3.9
                       - ubuntu-toolchain-r-test
-          compiler: clang-3.6
+          compiler: clang-3.9
           env:  EXTENDED_TEST="yes" CONFIG_OPTS="no-asm enable-ubsan enable-rc5 enable-md2 enable-ssl3 enable-ssl3-method enable-nextprotoneg -fno-sanitize=alignment no-shared -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION"
         - os: linux
           addons:
               apt:
                   packages:
-                      - clang-3.6
+                      - clang-3.9
                   sources:
-                      - llvm-toolchain-precise-3.6
+                      - llvm-toolchain-trusty-3.9
                       - ubuntu-toolchain-r-test
-          compiler: clang-3.6
+          compiler: clang-3.9
           env: EXTENDED_TEST="yes" CONFIG_OPTS="no-asm enable-asan enable-rc5 enable-md2 no-shared -DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION"
         - os: linux
           addons:
@@ -149,7 +152,7 @@ before_script:
           export CROSS_COMPILE=${CC%%gcc}; unset CC;
           $srcdir/Configure mingw64 $CONFIG_OPTS -Wno-pedantic-ms-format;
       else
-          if which ccache >/dev/null && [ "$CC" != clang-3.6 ]; then
+          if which ccache >/dev/null && [ "$CC" != clang-3.9 ]; then
               CC="ccache $CC";
           fi;
           $srcdir/config -v $CONFIG_OPTS;
@@ -173,6 +176,8 @@ script:
     - $make
     - if [ -z "$BUILDONLY" ]; then
           if [ -n "$CROSS_COMPILE" ]; then
+              sudo dpkg --add-architecture i386;
+              sudo apt-get update;
               sudo apt-get -yq --no-install-suggests --no-install-recommends --force-yes install wine;
               export EXE_SHELL="wine" WINEPREFIX=`pwd`;
           fi;