concordance fixes, esp for plaintext and tokens; sent split option
concordance fixes, esp for plaintext and tokens; sent split option


Former-commit-id: b43a86fb7b9807230cd8680ab9f1781d1e26124d [formerly 32c4b6a8840525b6f38607b6acf3e4f183e5a812]
Former-commit-id: 589a2b808e43c226e983fa370b5a07d366947c0b
interrogator/corpkit,interrogator/corpkit