Added export-ignore-attributes to .gitattributes

Author: rkrx

.gitattributes

@@ -3,3 +3,10 @@
 
 # Force the following filetypes to have unix eols, so Windows does not break them
 *.* text eol=lf
+
+/.gitattributes     export-ignore
+/.gitignore         export-ignore
+/.scrutinizer.yml   export-ignore
+/.travis.yml        export-ignore
+/tests.xml          export-ignore
+/tests              export-ignore