DOC: rst stubs for query module, fix to changelog

CHANGELOG.rst

@@ -13,7 +13,7 @@ Added
   file/directory templates (Michiel Cottaar).
 * Simple built-in :mod:`.deprecated` decorator.
 * New :mod:`fsl.data.utils` module, which currently contains one function
-  :func:`.guessType`, which guess the data type of a file/directory path.
+  :func:`.guessType`, which guesses the data type of a file/directory path.
 * New `.commonBase` function for finding the common prefix of a set of
   file/directory paths.
 

doc/fsl.utils.filetree.query.rst

+``fsl.utils.filetree.query``
+============================
+
+.. automodule:: fsl.utils.filetree.query
+    :members:
+    :undoc-members:
+    :show-inheritance:

doc/fsl.utils.filetree.rst

@@ -6,6 +6,7 @@
 
    fsl.utils.filetree.filetree
    fsl.utils.filetree.parse
+   fsl.utils.filetree.query
    fsl.utils.filetree.utils
 
 .. automodule:: fsl.utils.filetree