Add a function to JQL to refer to the current project

In order to create generic filters that work in any project, we would need a JQL function that refers to the current project in the browser page, just like we have a function like CurrentUser which refers to the current user.

We could then have a filter that would be like:

project = currentProject()

Project

Search for issues that belong to a particular project. You can search by project name, by project key or by project ID (i.e. the number that JIRA automatically allocates to a project). In the rare case where there is a project whose project key is the same as another project's name, then the project key takes preference and hides results from the second project.