fix test scripts

test/test_bug.py

@@ -1,4 +1,5 @@
 #encoding=utf-8
+from __future__ import print_function
 import sys
 sys.path.append("../")
 import jieba

test/test_change_dictpath.py

@@ -1,4 +1,5 @@
 #encoding=utf-8
+from __future__ import print_function
 import sys
 sys.path.append("../")
 import jieba

test/test_cut_for_search.py

@@ -1,4 +1,5 @@
 #encoding=utf-8
+from __future__ import print_function
 import sys
 sys.path.append("../")
 import jieba

test/test_tokenize.py

@@ -1,4 +1,5 @@
 #encoding=utf-8
+from __future__ import print_function,unicode_literals
 import sys
 sys.path.append("../")
 import jieba

test/test_tokenize_no_hmm.py

@@ -1,4 +1,5 @@
 #encoding=utf-8
+from __future__ import print_function,unicode_literals
 import sys
 sys.path.append("../")
 import jieba