Place the 2 tablespoons butter, 2 tablespoons oil, onion, celery, red and yellow bell peppers, parsley, capers, hot pepper sauce, Worcestershire sauce, crab boil seasoning, salt, and pepper in a large saute pan over medium-low heat and cook until the vegetables are soft, approximately 15 to 20 minutes. Cool to room temperature. In a large bowl, break the lump crabmeat into small pieces and toss with the bread crumbs, mayonnaise, mustard, and eggs.