Branching and version structure

[bertmelis]

Please check the branch structure if you encounter compilation problems.
You can confirm your version in the files library.json or library.properties. Check the main version number.

• master/main
  This is the latest version with most recent features. It carries main version number 3. This branch is considered stable.

• development
  This is the development branch. It is ahead of master with features under test.

• v1
  In this branch lives the very first version of this library. It is still usable and stable but no development is going on here.

• v2
  Version 2 is kept here. There is no development.

Other branches contain features/bugfixes and are only to be used in specific situations.
Small bugfixes can always be applied to all branches.