New form step for selecting a content model.
Updated for depreciated ingest functions.
Also Coding Standards.
Use format_plural() to handle pluralization.
Factor out require_once, and fix comment.
Fix typo.
Merge pull request #3 from adam-vessey/7.x-ingest-without-xml-forms

Fix pluralization and squash require_once.
Merge pull request #51 from nigelgbanks/7.x-ingest-without-xml-forms

New form step for selecting a content model.