Merge pull request #4 from 1drop/task/Neos7+Compability

task: set neos required versions

Merge pull request #3 from 1drop/update-composer

Update composer for Neos 5

Merge pull request #3 from 1drop/update-composer

Update composer for Neos 5

[FIX] compatibility with Flow5

Resolves #1

TASK: Apply migration Neos.Neos.Ui-20190319094900

Migrate additional RTE formatting configuration to new format

Note: This migration did not produce any changes, so the commit simply
marks the migration as applied. This makes sure it will not be applied
again.

[TASK] neos 4 compatibility