Merge pull request #594 from robertoostenveld/fif_gz

gzipped fif files are not allowed

Author: chrisgorgo

bids_validator/rules/file_level_rules.json

@@ -210,7 +210,6 @@
         "nii",
         "nii.gz",
         "fif",
-        "fif.gz",
         "sqd",
         "con",
         "kdf",