Update Drupal 8 Core with dev modules

The package webflo/drupal-core-require-dev provides the require-dev dependencies of drupal/core as a standalone package and is used by many developers.

This dependency prevented updating Drupal 8 Core via Drop Guard.

Some requests arrived us to respect that package and now Drop Guard supports the update Drupal 8 Core together with webflo/drupal-core-require-dev.

Now if the webflo/drupal-core-require-dev package is using in your project, Drop Guard will execute update for drupal/core and webflo/drupal-core-require-dev up to the equal versions.

Improved behavior for update Drupal 8 Core

At first we want to thank you Tatár Balázs János (European Commission) and Anja Schirwinski (undpaul) for reporting the issue and discussions about the new feature.

Initially, the development of Drop Guard was done for Drupal 7, which has a sequential version numbering system: 7.10 .. 7.20 .. 7.50. If a user uses 7.50 and 7.51 is available he should apply this update and almost certainly this update will be applied without any problems.

Drupal 8 supports several parallel "active branches", right now it is 8.5, 8.6 and 8.7.