Add ARM cross build and QEMU user space emulated tests to the CI

JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu

tools/apt-get-install-qemu-arm.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+# Copyright 2016 Samsung Electronics Co., Ltd.
+# Copyright 2016 University of Szeged
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+sudo apt-get update -q
+sudo apt-get install -q -y \
+    gcc-arm-linux-gnueabihf libc6-dev-armhf-cross \
+    qemu-user-static