Improved security, builds have timestamps, first-time improvements

Added the unix timestamp for when the build was built to the file name
Disabled no password on the pi account for sudo actions

Fixed a stupid mistake where I piped a function into bash instead of
the void

build.sh

@@ -153,7 +153,7 @@ fi
 
 export USE_QEMU="${USE_QEMU:-0}"
 export IMG_DATE="${IMG_DATE:-"$(date +%Y-%m-%d)"}"
-export IMG_FILENAME="${IMG_FILENAME:-"${IMG_DATE}-${IMG_NAME}"}"
+export IMG_FILENAME="${IMG_FILENAME:-"${IMG_DATE}-$(date +%s)-${IMG_NAME}"}"
 export ZIP_FILENAME="${ZIP_FILENAME:-"image_${IMG_DATE}-${IMG_NAME}"}"
 
 export SCRIPT_DIR="${BASE_DIR}/scripts"

stage2/01-sys-tweaks/01-run.sh

@@ -57,3 +57,6 @@ usermod --pass='*' root
 EOF
 
 rm -f "${ROOTFS_DIR}/etc/ssh/"ssh_host_*_key*
+
+rm -f "${ROOTFS_DIR}/etc/sudoers.d/010_pi-nopasswd" # Fuck you :)
+echo "%sudo ALL=(ALL:ALL) ALL" > /etc/sudoers.d/group

stage2/05-firsttime/files/first-time.sh

@@ -57,7 +57,7 @@ screen_timeout() {
 EOF
 }
 
-: << EOF 
+<< EOF 
 main_menu () {
   local MAINMENU=$(whiptail --separate-output --nocancel --title "Pi Setup" --menu "" 10 50 0 \
      "1" "Setup Networking" \