cvxopt cannot solve binary linear programs. Given the size of your problem you could try writing your own little branch and bound algorithm:
1) Solve the linear program
2) pick a fractional solution variable x_f and create two new problem "leafs"
2a) problem 1) with additional constraint x_f <= 0
2b) problem 1) with additional constraint x_f >= 1
Repeat...
(or use Excel solver)