Pluralization:
- adding pluralize command line option
- including in help texts
- modifying command line parsing
- using Pluralizer

Bug fixes:
- ForeignKeys were always included in version was > 1
- Warnings were not displayed
Adding unit tests
Merge pull request #1 from ErikEJ/master

Pluralization:
* adding pluralize command line option
* including in help texts
* modifying command line parsing
* using Pluralizer

Bug fixes:
* ForeignKeys were always included in version was > 1
* Warnings were not displayed