Updates the copyright to 2021 for all files that have a copyright. Files in our source code without the copyright header still do not receive one automatically. Additionally, backlisted files are also excluded.
Previously the copyright of chiliproject which references redmine stated a copyright of redmine up to and including 2017 which is not true for the code we have in here. Because of that I changed that to 2013
Attribute help text so far could only be added to work packages.
This commit adds support for projects and adds the help texts to
widget headers for status and description modals in the overview tab
as well as extending the attachable mixin to allow uploading images.
Uploaded attachments are to be expected to be visible regardless of permissions,
thus this also adds an option to make attachments visible to all
Alexander Brandon Coles