Removed official Jython 2.5.3 support in favour of less complex Travis CI build. Fix other travis ci issues.

test/test_integration.py

@@ -23,7 +23,10 @@ import os
 import sys
 import threading
 
-import unittest2 as unittest
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
 
 _THIS_DIR = os.path.dirname(os.path.abspath(__file__))
 

test/test_mock.py

@@ -19,7 +19,10 @@
 
 import jaydebeapi
 
-import unittest2 as unittest
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
 
 class MockTest(unittest.TestCase):
 

test/testsuite.py

@@ -4,7 +4,10 @@
 from optparse import OptionParser
 import sys
 
-import unittest2 as unittest
+try:
+    import unittest2 as unittest
+except ImportError:
+    import unittest
 
 def main():
     parser = OptionParser()