Improve 'tools/run-perf-test.sh'

Always write results on stdout and save markdown file optionally.
Use "Peak allocated" if binaries were built with MEM_STATS.

JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com

tools/mem-stats-measure.sh

@@ -0,0 +1,23 @@
+#!/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.
+
+JERRY=$1
+TEST=$2
+
+MEM_PEAK=`$JERRY $TEST --mem-stats | grep "Peak allocated =" | awk '{print $4}'`
+
+echo $MEM_PEAK