LinearProbingHashTable::insertKey() gets into infinite loop when a resize is needed

[saq10002]

When needGrow() is true, the code does "continue" whereas it should have done "break".

                        // see if we need to size up after this insertion
                            if (this->needGrow(_population+1)){
                                // current bucket is not appropriate anymore under new size
                                // exit the do{} loop, after which we grow and try again
                                continue; // <<<<<<< bug
                            }