make project sample working for the 5.1.7-SNAPSHOT branch

Here is the list of problems that we have identified about project sample

Here is the whole list of points that have to be fixed in the project sample

• book schema does not have a correct alias
• web templates does not use book results providers
• workflow tab is not displayed
• book workflow definition is not loaded
• book document type is not versionnable
• query models filter subjects instead of book keywords
• all component definitions does not use the 'package' variable