Adding cidr filter checks
adding tests for extractnumbers filter
Adding tests for urldecode filter
Adding spec tests for sumnumbers filter
Add spec test for gelfify and make it actually work
Merge pull request #927 from electrical/cidr_spec

Adding cidr filter checks
Merge pull request #928 from electrical/extractnumbers_spec

adding tests for extractnumbers filter
Merge pull request #929 from electrical/urldecode_spec

Adding tests for urldecode filter
Merge pull request #930 from electrical/sumnumbers_spec

Adding spec tests for sumnumbers filter
Merge pull request #931 from electrical/gelfify_spec

Gelfify spec