0.1.3

• permission bugfix for the content folder and new posts on some hosts
• transparent png files are handled correctly, when the 'image_jpg_to_png' option is set to false (if it is set to true, which is the default, png images get converted to jpg and loose their transparency)
• you can set a background color for transparent images, when the 'image_jpg_to_png' option is set to true (which is the default); defaults to white background color
• https://www.example.com and http://www.example.com are now seen as the same user
• setup: add comments to .htaccess, at beginning and end of our block
• bugfixes & enhancements