Added helper script for update __pkginfo__ with a given MDANSE version number

bumb_version.sh

+#!/bin/bash
+
+VERSION=$1
+
+# Update version number to python source code (will appear in "About..." dialog)
+# see http://stackoverflow.com/questions/7648328/getting-sed-error
+sed -i "s/.*__version__.*/__version__ = \"${VERSION}\"/" __pkginfo__.py
+
+# Update the date of the version
+sed -i "s/.*__date__.*/__date__ = \"`date +"%d-%m-%Y"`\"/" __pkginfo__.py
+