Add .editorconfig

Use EditorConfig to define a some basic styling rules for code.  This
should also help to reduce the number of commits introducing trailing
whitespace.

See http://editorconfig.org/ for details.

1 files changed, 12 insertions, 0 deletions

diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 000000000..9c562bd1f
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,12 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 2
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.{markdown,md}]
+trim_trailing_whitespace = false