add specs for input files containing whitespace
Merge pull request #27 from beanieboi/bug/specs-for-whitespaced-files

add specs for input files containing whitespace
remove rake, it's actually not needed
Merge pull request #28 from beanieboi/feature/remove-rake

remove rake, it's actually not needed
Merge remote-tracking branch 'origin/master' into feature/upgrade-rspec3

Conflicts:
	ffprober.gemspec