Maintenance.

.editorconfig

@@ -0,0 +1,30 @@
+# editorconfig.org
+
+root = true
+
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 4
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+
+[package.json]
+indent_style = space
+indent_size = 2
+
+
+[.travis.yml]
+indent_style = space
+indent_size = 2
+
+
+[*.md]
+trim_trailing_whitespace = false
+
+
+[*.jade]
+trim_trailing_whitespace = false