Different, more flexible, field names.
Changed vendor name from RK to RickDev
Revert "Changed vendor name from RK to RickDev"

This reverts commit 434b3ccf882b450e3efa957c668d21ffc3479108.
Added select field type
Added yes/no field type
Added file and image field support
Fixes #2
Fixes #1
Updated changelog
Updated README with new field types
Updated type conversion and fixed upload error
Merge branch 'develop'