ISO fixes: rename liveuser->antergos, add Antergos NeXT os-release, drop lsb-release, fix wallpaper/Plasma setup

airootfs/etc/group

@@ -1,8 +1,8 @@
 root:x:0:root
-adm:x:4:liveuser
-wheel:x:10:liveuser
-uucp:x:14:liveuser
-nopasswdlogin:x:966:liveuser
-rfkill:x:983:liveuser
-sys:x:3:bin,liveuser
-liveuser:x:1000:liveuser
+adm:x:4:antergos
+wheel:x:10:antergos
+uucp:x:14:antergos
+nopasswdlogin:x:966:antergos
+rfkill:x:983:antergos
+sys:x:3:bin,antergos
+antergos:x:1000:antergos

airootfs/etc/gshadow

@@ -1,2 +1,2 @@
 root:!*::root
-liveuser:!*::
+antergos:!*::

airootfs/etc/os-release

@@ -0,0 +1,10 @@
+NAME="Antergos NeXT"
+PRETTY_NAME="Antergos NeXT"
+ID=antergos
+ID_LIKE="arch"
+BUILD_ID=rolling
+VERSION_ID="rolling"
+HOME_URL="https://github.com/Antergos-NeXT"
+SUPPORT_URL="https://github.com/Antergos-NeXT"
+BUG_REPORT_URL="https://github.com/Antergos-NeXT/issues"
+LOGO=antergos-icon

airootfs/root/antergos-skel-liveuser/src/etc/skel/.bashrc

@@ -7,9 +7,9 @@
 
 [[ -f ~/.welcome_screen ]] && . ~/.welcome_screen
 
-_set_liveuser_PS1() {
+_set_antergos_PS1() {
     PS1='[\u@\h \W]\$ '
-    if [ "$(whoami)" = "liveuser" ] ; then
+    if [ "$(whoami)" = "antergos" ] ; then
         local iso_version="$(grep ^VERSION= /usr/lib/antergos-release 2>/dev/null | cut -d '=' -f 2)"
         if [ -n "$iso_version" ] ; then
             local prefix="antergos-"
@@ -18,8 +18,8 @@ _set_liveuser_PS1() {
         fi
     fi
 }
-_set_liveuser_PS1
-unset -f _set_liveuser_PS1
+_set_antergos_PS1
+unset -f _set_antergos_PS1
 
 ShowInstallerIsoInfo() {
     local file=/usr/lib/antergos-release

airootfs/usr/lib/os-release

@@ -0,0 +1,10 @@
+NAME="Antergos NeXT"
+PRETTY_NAME="Antergos NeXT"
+ID=antergos
+ID_LIKE="arch"
+BUILD_ID=rolling
+VERSION_ID="rolling"
+HOME_URL="https://github.com/Antergos-NeXT"
+SUPPORT_URL="https://github.com/Antergos-NeXT"
+BUG_REPORT_URL="https://github.com/Antergos-NeXT/issues"
+LOGO=antergos-icon