allow relative references to mkdocs.yml

Fixes #37

More Intelligent Data Files

Better handling of mass data files with numeral first file names 1_data.yaml

Thanks @operte

default for data_source_folders

0.2.1

fixed default for data_source_folders (#33)

0.2.0

Works now on titles

Thanks @miffels

better template var handling

Jinja2 env over template

Revert to on_page_markdown

due to incompatibilities with other plugins I have reverted the changes introduced in 0.1.5

Better template handling

Thanks @miffels nice upgrades

Better path handling

• Better handling of default _data in both default locations
• Ability to have multiple data paths
• Better readme