2012-06-18: create .local if it does not exist.

create .local if it does not exist.

diff --git a/setup_infocalypse_on_linux.sh b/setup_infocalypse_on_linux.sh
--- a/setup_infocalypse_on_linux.sh
+++ b/setup_infocalypse_on_linux.sh
@@ -2,10 +2,12 @@
 
 # Install and prepare infocalypse on your system.
 
-echo -n "Where do you store your Mercurial plugins? [~/.local/hgext]: "
+default="$HOME/.local/hgext"
+
+echo -n "Where do you store your Mercurial plugins? [$default]: "
 read hgext
 if [ "$hgext" == "" ]; then
-    hgext="$HOME/.local/hgext"
+    hgext="$default"
 fi
 
 # enter hgext. Create it if necessary and requested
@@ -14,7 +16,10 @@
     echo -n "Folder \"$hgext\" does not exist. Create it? [Y/n] "
     read create
     if [ "$create" != "n" ]; then 
-        mkdir $hgext        
+        if [ "$hgext" == "$default" ]; then
+            mkdir $HOME/.local/
+        fi
+        mkdir $hgext
     fi
 fi
 if [ "$?" != "0" ]; then