Added travis, changed README to Markdown and fixed coding standards issues.
Fixed incorrect function documentation.
Merge pull request #54 from christianselig/7.x

Added travis, changed README to Markdown and fixed coding standards issues.
Merge branch '7.x-derivatives' of github.com:jordandukart/islandora_solution_pack_pdf into 7.x-derivatives

Conflicts:
	includes/derivatives.inc