Bumped version number to 0.9.1
Python 2.6=< for setup.py, remove old build

setup.py not exits if python is older than 2.6
Removed rhel5 build from release engineering
Python 2.6 version_info is a tuple
Use non interactive mode for sude in Control

If sudo is being used and it needs input it will now exit immediately.

From sudo man page:

Avoid prompting the user for input of any kind.  If a password is
required for the command to run, sudo will display an error message and
exit.
Fix sudo testing, now called with non-interactive
Merge pull request #158 from pynag/feature-sudo-non-interactive

Feature sudo non interactive
Replace --non-interactive with -n

Older versions of sudo did not support the long option --non-interactive
but only -n.
Update mock tests for pynag.Control.daemon
Merge pull request #159 from pynag/bugfix-sudo-bad-option

Replace --non-interactive with -n
Merge pull request #157 from pynag/python26-or-newer

Python 2.6=< for setup.py, remove old build
Typo
Merge pull request #161 from zanglang/patch-1

Typo
Fix recursive delete of host

When host.delete(recursive=True) is called, it would
previously delete all services that contained host.host_name.

Now deletion is slightly smarter, and if there is a service
with service.host_name="host_a,host_b" and host_a is deleted,
then only the reference to host_a is deleted, not the whole service.
Assert that the service is on two hosts before host delete
Revert "Assert that the service is on two hosts before host delete"

This reverts commit aaad3720c04a7d58f25cbaf5a48f66a0e839e3fe.

.filter only returns the one result.
Merge pull request #162 from pynag/fix-recursive-delete-of-host

Fix recursive delete of host