fix #1623 kaplain maier + float values
 * clinical = inhomogenous tables
 * other lineup = natural_numbers & real_numbers of inhomogenous
 * kaplain maier can now handle float values (but will be interpreted as
ints)
#1631 skip and remove missing entries tourguide options (just for add
(in)dependent)
fix #1101: log mapping fails for 0 -> same workaround as for p-value:
max(10E-10,value)
#1627 more present representation of min cluster size filter
fix #1627 use the new min size filter option