Remove the development branch

[JessicaTegner]

Hi. Suggestion to remove the development branch since people get' confused and pushes / tries to merge to the wrong branch.

So the merge flow would go from ' fork

• make changes to fork/development
• make pr against lucia/development
• We merge into development and later to master.

to the following:

• Fork
• make changes to fork/master
• before making pr, pull latest changes from lucia/master.
• make pr against lucia/master
• We merge pr into master.

In addition, that would also give people the most recent updates when pulling, to install from source with git clone (like what's described in the README).

[JessicaTegner]

Fixed the development branch (had to recreate it). Also added branch protection rules for master so it shouldn't happen again.