Refactor Image::get() to make the resize computation testable
Add parameters $zoom and $importantPart to Image::get()
Add image sizes as subtable of tl_theme
Add important image part to tl_files
Update and add missing phpDoc blocks
Add the `<picture>` element
Add picturefill
Fix bug with palette images
Fixed wrong variable name used
CS
Added a better imageSizes icon and applied it to both themes
Merge pull request #1 from Toflar/feature/picture-element

First little review
Rename template block_picture to picture_default
Made Image class way more modular and object oriented
Fixed useless variable and rawurldecoding
Removed todo
Fixed missing return statements
Use static instantiation
getPicture and getPictureSource are now not static anymore
Fixed duplicate tests for valid file