Added obligatory PATH customization to run grid_tile.sh

run_before_grid_tile.sh

+# .bashrc
+
+if [ -z ${1+x} ]; then
+    echo 'Specify LAS/dvlp path. Ie: /home/sm_ludbr/LAS/dvlp'
+    exit 1
+fi
+
+module load geos/3.4.2-i1501
+module load gcc/6.2.0
+. /home/sm_davse/virtualenvs/gdalenv/bin/activate
+export PATH=$1:/home/sm_davse/LAS/LAStools/bin:$PATH
+