* Fix screenshot logging * Update libpng to 1.6.37 * cellScreenshot: Write text chunks * cellScreenshot: add overlay image * screenshot_manager: add /dev_hdd0/photo/ * read_png_file: use deleter instead of manual close * cellScreenshot: use Qt for overlays * cellScreenshot: don't apply overlay to regular img * screenshot_manager: add mount hack for VFS * cellScreenshot: escape the whole path