Move code to root folder of studentified project

[adpi2]

I find it not convenient that the sbt project is in the code folder and not in the root folder of the studentified project. I would prefer to have everything in the same folder so that I can run all the commands (git, cmtc and sbt) from the same working directory.

[eloots]

Instead of moving the code to the root folder, I would keep it as-is, but apply the following changes:

• Instead of initialising the repo as a git repo at the root folder level, only initialise the code folder as a git repo. That should be an easy change (applied as an overall change in the cmta command which is used to generate the student repo.)
• With the change in the previous item, both git and sbt can be used in the code folder.
• As far as cmtc is concerned, I see that as a minor point as the instructions tell that the first thing a student should do is to run the cmtc set-current-course -s <course-repo-folder>. From then on, all cmtc invocations will be applied on the current course.

[eloots]

What you requested is now possible via scalacenter/course-management-tools#242

The only thing that is necessary is to set cmt.studentified-repo-active-exercise-folder = . in the project's course management configuration file.