Revert "#47 replace question title with content"

This reverts commit 4ea9b523011c31cd01220e7d24532520e54ecd22.
Revert "fix cucumber specs"

This reverts commit 82211d2bd0518940542a1752d71632cf0e143867.
 #47 display serial number of question

including a migration to load the questions' content to title.