general: minor cleanup

- get rid of unnecessary globs in get_files (they should be in config if the user wishes)
- get rid of some old kython imports
- do not convert Path twice in foursquare (so CPath works correctly)

my/fbmessenger/__init__.py

@@ -53,3 +53,7 @@ if legacy:
 REQUIRES = [
     'git+https://github.com/karlicoss/fbmessengerexport',
 ]
+
+
+# to prevent it from apprearing in modules list/doctor
+from ..core import __NOT_HPI_MODULE__