Fix for some pyflakes warnings.

cobbler/remote.py:24: 'glob' imported but unused
cobbler/remote.py:1080: local variable 'templates' is assigned to but never used
web/cobbler_web/views.py:8: 'os' imported but unused
Fix for some pep8 warnings as result of major refactor work.

cobbler/item_image.py:108:1: E101 indentation contains mixed spaces and tabs
cobbler/item_image.py:108:1: W191 indentation contains tabs
cobbler/tftpgen.py:555:89: W291 trailing whitespace
cobbler/utils.py:69:75: W291 trailing whitespace
cobbler/utils.py:72:1: E302 expected 2 blank lines, found 1
cobbler/utils.py:930:1: E302 expected 2 blank lines, found 1
cobbler/utils.py:1533:1: E101 indentation contains mixed spaces and tabs
cobbler/utils.py:1533:1: W191 indentation contains tabs
cobbler/modules/authz_ownership.py:181:71: W291 trailing whitespace
web/cobbler_web/views.py:748:1: W293 blank line contains whitespace
Merge pull request #1285 from jmaas/master

Several fixes (pyflakes/pep8)