misc minor improvements and scripts

releng.control/ant_low_priority.sh

-#!/bin/sh
-
+#!/usr/bin/env bash
+#
 # remember to leave no slashes on commonVariations in source command,
 # so that users path is used to find it (first). But, path on
 # commonComputedVariables means we expect to execute only our

releng.control/ant_med_priority.sh

-#!/bin/sh
-
+#!/usr/bin/env bash
+#
 # remember to leave no slashes on commonVariations in source command,
 # so that users path is used to find it (first). But, path on
 # commonComputedVariables means we expect to execute only our

releng.control/miscSampleScripts/summarizeRequestLogs.sh

+#!/usr/bin/env bash
+#
+cat /shared/webtools/apps/cruisecontrol-bin-2.8.1/logs.*.request.log | grep \"GET | cut -d" " -f1 | sort | uniq -c | sort -b -g