Convert field to field_base and field_instance in all features
Fix book migration - skip corrupted book nodes
Add patch for reply module to make file to fix bug in reply_get_children()
Fix book migration - skip corrupted book nodes in book_comments migration (which affected book migration)
Hide field reply field itself (it meant to be used only for replies on fields)
Merge pull request #19 from ratajczak/master

Features to use field base and field instance exportables