create dynamic shema of a database

Hello,

I've found you're repository on github, when I was searching for a database modelising tool.

I've run you're app, but it was a syntax error (because of table name with a dash). I've fixed this with commit 3b9e092.

I intend to manage to have an active fork of youre repository, because database modelisation is one of my need.

Regards,

PS : It my first pull request ever on github, hope its clear