Added brief description for vars, fixed assignment of random value.
Added brief description for vars, fixed assignment of random value.

wbhart/flint2,jpflori/flint2,wbhart/flint2,jpflori/flint2,dsroche/flint2,dsroche/flint2,fredrik-johansson/flint2,fredrik-johansson/flint2,dsroche/flint2,fredrik-johansson/flint2,jpflori/flint2,jpflori/flint2,dsroche/flint2,wbhart/flint2