Update generator.yml

Fix for propel generator to automatically add model name
updates doc to overwrite menu block

updates doc, to explain how to overwrite menu-block
Merge pull request #661 from soeren-helbig/master

updates doc to overwrite menu block
Fix warning when using config:dump-reference on admingenerator_generator
Revert #659
Merge pull request #662 from rolebi/master

Fix warning when using config:dump-reference on admingenerator_generator
Merge pull request #658 from ksn135/master

Update generator.yml
Merge remote-tracking branch 'upstream/master'