added more cd functionality; users can now use cs to run cd directory followed...

added more cd functionality; users can now use cs to run cd directory followed by ls and .. runs cd .. ... runs cd ../.. etc.

.bashrc

+function cs {
+    cd $1
+    ls
+}
+alias ..='cd ..'
+alias ...='cd ../..'
+alias ....='cd ../../..'
+alias .....='cd ../../../..'
 export EDITOR=vim