160435 – [PATCH] sysutils/py-supervisor: eliminate py-elementtree dependency

no flags

This port actually don't use py-elementtree, this dep is needed only for www/py-meld3. You can grep for it and will found that the only functional mention of this is in setup.py:

"""
if sys.version_info[:2] < (2, 5):
    # for meld3 (it's a distutils package)
    requires.append('elementtree')
"""

So we can safely remove this two dependencies from this port:
- devel/py-elementtree
- devel/py-celementtree

But this needs to bump USE_PYTHON to 2.5+ (Python 2.4 is EOL anyway).
There is also ports/160304, that updates www/py-meld3 to latest version, that can work with python's elementtree too. 

elementtree is a part of python since 2.5, so this dependency isn't needed after we bump USE_PYTHON to 2.5+. See: http://docs.python.org/library/xml.etree.elementtree.html

While here fix some whitespace bugs in pkg-descr.

tag: dropelementtree

Fix: Patch attached with submission follows: