return false when stock lookup fails
strict lookup of stocks
packages to deal with pedigrees
tests for adding pedigrees
package to add pedigrees
test adding male and female parents
exact method for lookup of stocks
get arrayref of pedigrees
function to add pedigrees
tests for adding pedigrees
package to add crosses
fix undef in add cross
test for adding crosses
Merge branch 'master' into topic/fix_blast_ajax