Merge branch 'release-0.0.3' into develop
Updated READEME.md

Added links and instructions on how to download the files.
Renamed files to make working example.
Improved error checking in SWDF_clean_image_cache()

The function now checks that settings have been loaded, and will no longer attempt to clean the cache if caching has been disabled (unless the second parameter is set to true).
Image caching is now disabled by default in the example_config file
Updated preamble comment
Improved data checking and added some phpDoc to function SWDF_add_img_path
Fixed newline in phpDoc
Fixed uninitiated var bug.

When run in E_ALL mode, php was throwing an error which messed up the
image.
Updated default config
Added two example images to the repo.
Updated the README with new Quick Start
Fixed typo in the README
Bumped version to v0.0.4
Merge branch 'develop'