Replace "%s/%s" with os.path.join
Remove shell=True from PDF extraction routines
Move strip() further up in preprocess_report()

This was causing problems when report['url'] had a trailing space, because
that meant report['file_type'] ended up getting a trailing space too,
which never got stripped.
Make sure file_type is strip'd as well.

Follow up to 4b78aedde789d945a19a99351bc58ef7472a6121,
so that the order of pre-processing events is less important.
Merge pull request #86 from unitedstates/os_path_join

Replace "%s/%s" with os.path.join()
Merge pull request #87 from unitedstates/no_shell

Remove shell=True from PDF extraction routines
Merge branch 'master' of github.com:unitedstates/inspectors-general into more_pdfinfo

Conflicts:
	inspectors/utils/utils.py