fix memory leak when (un)pickling tinyarrays

Also fixes other memory leads. Previously, load_index_seq_as_long did
not correctly DECREF the new reference created by PySequence_Fast.

fixes #10
5 jobs for master in 38 seconds
Status Name Job ID Coverage
  Test
passed mirror #4176

00:00:23

failed python2 #4190

00:00:14

passed python3 #4175

00:00:19

failed python2 #4179

00:00:09

failed python2 #4174

00:00:08

 
Name Stage Failure
failed
python2 Test There is an unknown failure, please try again
Fetching changes...
HEAD is now at 158fb87 fix memory leak when (un)pickling tinyarrays
Checking out 158fb875 as master...
$ python2 setup.py build_ext -i
Traceback (most recent call last):
File "setup.py", line 18, in <module>
import configparser
ImportError: No module named configparser
ERROR: Build failed: exit code 1