Don't append underscore to empty prefix.
no double underscores in pagepartgenerator
fixed cleanPrefix, extracted askNamespace & askPrefix from the DefaultSiteGenerator
Use generic logic for prefix & namespace for all generators where possible

Also create a generic way of ensuring the required settings have been set.
Prefill the first found local bundle.

The code is sadly duplicated from the PagePartBundle. We need a rewrite where code can be shared.
Give feedback after every generator of what to do.

This needs to be rewritten in a big rewrite so it returns an array of things left to do which is displayed afterwards.
Feedback for EntityGenerator as well.
This is also needed for the no double underscores in pagepart generator
EntityGenerator Asks for a prefix & correctly sets tablename on the entity
Only setOption in askForPrefix and askForNamespace if option available.
Don't append extra underscore after prefix in PagePartGenerator
Handle variables a bit nicer in GenerateEntityCommand
Remove the loop ik askForNamespace since it's already handled by askAndValidate
Nicer copy for asking for the ArticleGenerator's entity name.
Merge pull request #80 from Kunstmaan/rewrite_prefixes_bundles

Rewrite asking for prefixes & namespaces