Fixed several icons and added/updated some as well. (New icons for Newsstand, Game Center, Voice Memos, Maps etc.)
Settings Icons were added (Thanks to @Jato_BZ for recompiling them).
*** WARNING ***
The folder background does only appear when you're inside a folder, so please don't be confused if the animation looks weird. Since Apple changed the folder icons into code, we theme creators can't do much :/