- changed Twisted_Core back to Twisted in files/patch-setup.py.
devel/py-twistedCore was removed since r450958:
https://svnweb.freebsd.org/ports?view=revision&revision=450958
```
# /usr/local/bin/obfsproxy
Traceback (most recent call last):
File "/usr/local/bin/obfsproxy", line 6, in <module>
from pkg_resources import load_entry_point
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3195, in <module>
@_call_aside
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3179, in _call_aside
f(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3208, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 681, in _build_master
ws.require(__requires__)
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 999, in require
needed = self.resolve(parse_requirements(requirements))
File "/usr/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 885, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'Twisted_Core' distribution was not found and is required by obfsproxy
```
Proposed commit log message:
```
security/py-obfsproxy-tor: Fix runtime dependency error
- Change runtime dependency entry point Twisted_Core back to Twisted
- Update checksum for CHEESESHOP
- Add test target
Reviewed_by: cs, koobs
Approved by: cs (maintainer), koobs (ports)
Differential_Revision: D13452
```