Update changelog
Bumping version to 1.3.9
Merge branch 'release-1.3.9' into develop

* release-1.3.9:
  Bumping version to 1.3.9
Fix typo in comment
Update tests for empty list serialization
Update changelog
Bumping version to 1.3.10
Merge branch 'release-1.3.10' into develop

* release-1.3.10:
  Bumping version to 1.3.10
  Update changelog
  Update tests for empty list serialization
Update README to state >= 2.6.5 is required

Earlier version of 2.6 won't work due to

http://bugs.python.org/issue2646
Fix Python 3.x issue with CloudTrail
Merge branch 'readme-versions' into develop

* readme-versions:
  Update README to state >= 2.6.5 is required
Merge pull request #768 from cdodd/develop

Fix typo in comment
Merge pull request #773 from danielgtaylor/cloudtrail-py3

Fix Python 3.x issue with CloudTrail. Fixes #773.
Cast to correct types for list-structure(list-scalar, scalar)

This modifies the shorthand JSON parsing to make sure a list of structures
are cast to the correct types based on the service model. Previously they
would all be set as strings, for example with EMR:

```
$ aws emr modify-instance-groups --instance-groups InstanceGroupId=foo,InstanceCount=3

Invalid value ('3') for param element of list:InstanceGroups of type list
```

In the above, the `3` was parsed as a string rather than an integer. This
update uses `unpack_scalar_cli_arg` to fix the issue by casting to the proper
types.
Fix issue #765 with non ascii characters in user-data

Read in the file:// contents as text, which is decoded via
locale.getpreferredencoding().

This introduces a py2/py3 compat_open so that you can open
a file with a encoding argument (not availble in py2's open()).
Remove arg_types in favor or args
Merge pull request #776 from danielgtaylor/shorthand-unpack

Cast to correct types for list-structure(list-scalar, scalar). Fixes #776.
Merge branch 'unicode-user-data' into develop

* unicode-user-data:
  Fix issue #765 with non ascii characters in user-data
Update changelog with latest changes
Bumping version to 1.3.11