Update rubocop configuration

.rubocop/lint.yml

@@ -0,0 +1,20 @@
+# lint cop settings
+
+#
+# False positives:
+#   * expect { something }.to change { something } often triggers this
+#
+Lint/AmbiguousBlockAssociation:
+  Exclude:
+    - "spec/**/*_spec.rb"
+
+#Lint/ShadowingOuterLocalVariable:
+#  Exclude:
+#    - "spec/**/*_spec.rb"
+#
+##
+## Assume we know what we do when resucing exception, as we do it much less often
+## than we actually should.
+##
+#Lint/SuppressedException:
+#  Enabled: false