Still deprecate install.sh and update.sh anyway; Tidier structure

setup

@@ -11,19 +11,26 @@ set -e
 
 #####################################################################################
 showhelp_global(){
-printf "[$0]: Handle setup for illogical-impulse.
+printf "${STY_CYAN}NOTE:
+  The old \"./install.sh\"   is now \"./setup install\"
+  The old \"./update.sh\"    is now \"./setup exp-update\"
+  The old \"./uninstall.sh\" is now \"./setup exp-uninstall\"${STY_RST}
+
+[$0]: Handle setup for illogical-impulse.
 
 Syntax:
   $0 <subcommand> [OPTIONS]...
 
 Subcommands:
-  install        (Default) Install/Reinstall/Update illogical-impulse.
+  install        (Re)Install/Update illogical-impulse.
   install-deps   Run the install step \"1. Install dependencies\"
   install-setups Run the install step \"2. Setup for permissions/services etc\"
   install-files  Run the install step \"3. Copying config files\"
+
   exp-uninstall  (Experimental) Uninstall illogical-impulse.
   exp-update     (Experimental) Update illogical-impulse without fully reinstall.
   exp-update-old (Experimental) exp-update but use behaves like old version.
+
   checkdeps      (For dev only) Check whether pkgs exist in AUR or repos of Arch.
   help           Show this help message.
 
@@ -33,7 +40,7 @@ For each <subcommand>, use -h for details:
 }
 case $1 in
   # Global help
-  help|--help|-h)showhelp_global;exit;;
+  ""|help|--help|-h)showhelp_global;exit;;
   # Correct subcommand
   install|exp-uninstall|exp-update|exp-update-old|checkdeps)
     SUBCMD_NAME=$1
@@ -44,11 +51,6 @@ case $1 in
     SUBCMD_NAME=$1
     SUBCMD_DIR=./sdata/subcmd-install
     shift;;
-  # No subcommand, default to install
-  -*|"")
-    SUBCMD_NAME=install
-    SUBCMD_DIR=./sdata/subcmd-install
-    ;;
   # Wrong subcommand
   *)printf "${STY_RED}Unknown subcommand \"$1\".${STY_RST}\n";showhelp_global;exit 1;;
 esac