Adding logic to build up a collection of document elements from a sample collection of documents
Upping version number to 1.7.1
Updating comments
Making sample size a configurable property
Don't fire warnings when converting a string type to string
Removing unnecessary nesting
Allow the user to offset the sample
Merge pull request #22 from simplybusiness/collect_document_columns

Determine the columns available in a collection through analyzing a sample of documents