Merge pull request thephpleague#75 from ker0x/patch-1

Add .gitattributes file

Author: tgalopin

.gitattributes

@@ -0,0 +1,10 @@
+* text=auto
+
+/.github            export-ignore
+/.gitattributes     export-ignore
+/.gitignore         export-ignore
+/.php_cs.dist       export-ignore
+/.rmt.yml           export-ignore
+/docs               export-ignore
+/phpunit.xml.dist   export-ignore
+/tests              export-ignore