Enhance bash shebangs

dev_tools/bootstrap_development_environment.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Set up 3 way PO file merging, which we need for non-mainline branches
 cp scripts/git-merge-po /usr/local/bin

dev_tools/liquidsoap_compile/liquidsoap-compile.sh

@@ -1,4 +1,4 @@
-#!/bin/bash -e
+#!/usr/bin/env bash -e
 apt-get install -y --force-yes lsb-release sudo
 dist=$(lsb_release -is)
 code=$(lsb_release -cs)

dev_tools/liquidsoap_compile/run.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 exec 2>&1
 

dev_tools/postCommitBuildTrigger.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # the base url of the bamboo server
 baseurl="$1/updateAndBuild.action?buildKey="

dev_tools/propel_regenerate.sh

@@ -1,4 +1,4 @@
-#!/bin/bash -e
+#!/usr/bin/env bash -e
 # Absolute path to this script
 SCRIPT=$(readlink -f $0)
 # Absolute directory this script is in

dev_tools/release/release.sh

@@ -1,4 +1,4 @@
-#!/bin/bash -e
+#!/usr/bin/env bash -e
 
 #release.sh 1.8.2
 #creates a libretime folder with a "1.8.2" suffix

dev_tools/toggle-pypo-debug.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root." 1>&2
   exit 1