Fix benchmark scripts.

Author: alexmx

benchmarks/benchmark-appium.sh

@@ -10,4 +10,7 @@ xcodebuild -project "../Contacts.xcodeproj" \
 
 cd "../appium" && bundle exec cucumber
 
+END=$(date +%s)
+DIFF=$(echo "$END - $START" | bc)
+
 echo "Time elapsed: $DIFF"

benchmarks/benchmark-calabash.sh

@@ -10,4 +10,7 @@ xcodebuild -project "../Contacts.xcodeproj" \
 
 cd "../calabash" && APP="../Build/Products/Debug-iphonesimulator/Contacts-cal.app" bundle exec cucumber
 
+END=$(date +%s)
+DIFF=$(echo "$END - $START" | bc)
+
 echo "Time elapsed: $DIFF"

benchmarks/benchmark-ui-automation.sh

@@ -8,6 +8,9 @@ xcodebuild -project "../Contacts.xcodeproj" \
     -derivedDataPath "../build" \
     build
 
-cd "../ui-automation" && ./run-tests.sh "../build/Products/Debug-iphonesimulator/Contacts-test.app" "iPhone 6 (9.1)"
+cd "../ui-automation" && ./run-tests.sh "../build/Products/Debug-iphonesimulator/Contacts-test.app" "iPhone 5s (9.1)"
+
+END=$(date +%s)
+DIFF=$(echo "$END - $START" | bc)
 
 echo "Time elapsed: $DIFF"