Update to the latest editorconfig from edx-lint.

Ran: `edx_lint write .editorconfig`

.editorconfig

@@ -2,12 +2,16 @@
 # ** DO NOT EDIT THIS FILE **
 # ***************************
 #
-# This file was generated by edx-lint: http://github.com/edx/edx-lint
+# This file was generated by edx-lint: https://github.com/edx/edx-lint
 #
 # If you want to change this file, you have two choices, depending on whether
 # you want to make a local change that applies only to this repo, or whether
 # you want to make a central change that applies to all repos using edx-lint.
 #
+# Note: If your pylintrc file is simply out-of-date relative to the latest
+# pylintrc rules in edx-lint, ensure you have the latest edx-lint installed
+# and then follow the steps for a "LOCAL CHANGE".
+#
 # LOCAL CHANGE:
 #
 # 1. Edit the local .editorconfig_tweaks file to add changes just to this
@@ -26,17 +30,28 @@
 # 1. Edit the .editorconfig file in the edx-lint repo at
 #    https://github.com/edx/edx-lint/blob/master/edx_lint/files/.editorconfig
 #
-# 2. Make a new version of edx_lint, which involves the usual steps of
-#    incrementing the version number, submitting and reviewing a pull
-#    request, and updating the edx-lint version reference in this repo.
+# 2. install the updated version of edx-lint (in edx-lint):
+#
+#       $ pip install .
+#
+# 3. Run (in edx-lint):
+#
+#       # uses .editorconfig_tweaks from edx-lint for linting in edx-lint
+#       # NOTE: Use Python 3.x, which no longer includes comments in the output file
+#       $ edx_lint write .editorconfig
+#
+# 4. Make a new version of edx_lint, submit and review a pull request with the
+#    .editorconfig update, and after merging, update the edx-lint version by
+#    creating a new tag in the repo (uses pbr).
 #
-# 3. Install the newer version of edx-lint.
+# 5. In your local repo, install the newer version of edx-lint.
 #
-# 4. Run:
+# 6. Run:
 #
+#       # uses local .editorconfig_tweaks
 #       $ edx_lint write .editorconfig
 #
-# 5. This will modify the local file.  Submit a pull request to get it
+# 7. This will modify the local file.  Submit a pull request to get it
 #    checked in so that others will benefit.
 #
 #
@@ -52,6 +67,8 @@
 # SERIOUSLY.
 #
 # ------------------------------
+# Generated by edx-lint version: 1.6
+# ------------------------------
 [*]
 end_of_line = lf
 insert_final_newline = true
@@ -77,7 +94,10 @@ trim_trailing_whitespace = false
 [.git/*]
 trim_trailing_whitespace = false
 
+[COMMIT_EDITMSG]
+max_line_length = 72
+
 [*.rst]
 max_line_length = 79
 
-# a699cc442902ab24adc720ac080c00e9ee72f728
+# f541be688d5bfddc4fdfc961a52e93edd05bc244