[aur-general] Merge request: appinventor

Please remove appinventor-setup [1] and merge the votes to appinventor [2]. I adopted appinventor-setup and renamed it to appinventor as the "-setup" really doesn't make any sense... Even the "source" tar.gz just contains the appinventor binaries and an empty appinventor-setup folder. [1] https://aur.archlinux.org/packages.php?ID=43678 [2] https://aur.archlinux.org/packages.php?ID=54765