Attaching license file for the package script is great for developers like to publish/share their CJT package scripts with others. Defining a license for the CJT Package script is defining by license tag. License can be either of raw text inside the Definition XML file or independent package text file.
<license> <![CDATA[ ... LICENSE TEXT HERE ... LICENSE TEXT HERE ... LICENSE TEXT HERE ]]> </license>
<license locate='file' />
NOTE: license.txt file must be presented in the package root folder.