Adding png attributes as binary files so git does not swap the crlf to lf.

Pete "Peteches" McCabe · Pete "Peteches" McCabe · commit c32da87c98b9 · 2015-10-14T18:00:38.000Z
diff --git a/.gitattributes b/.gitattributes
@@ -1,2 +1,5 @@
 # Force text files to have unix eols, so Windows/Cygwin does not break them
 *.* eol=lf
+
+# Except for images because then on checkout the files have been altered.
+*.png binary
