Fixing install script

openfpm_data @ 4dd1c489

-Subproject commit bdd22b64c819f28fb4072f41bcf353a7b856d521
+Subproject commit 4dd1c48908ee11689363c790e98515cdf33cc13d

openfpm_io @ 2eb9ae6c

-Subproject commit cf974ef2fe73ae7831d108fa32ff5d86e54022cf
+Subproject commit 2eb9ae6c4a8a89f12a7e516a93ede2d1c559a482

script/remove_old

@@ -5,7 +5,7 @@ function remove_old()
     ## Get the previos openFPM installation
     previous_inst=$(cat $PWD/install_dir)
     
-    if [ x"$previous_inst" !=x "" ]; then
+    if [ x"$previous_inst" != x"" ]; then
         echo "Found previous installation"
         if [ -d "$previous_inst/openfpm_pdata" ]; then
             echo "Removing the folder: $previous_inst/openfpm_pdata"