Revert "Enforce line endings when cloning (fixes #1766)"

This reverts commit 2361a0dd6ea7f603fd052b25edf63f491f8d932a.

.gitattributes

@@ -1,5 +1,5 @@
 # Text files use LF line endings in this repository
-*   text eol=lf
+*   text=auto
 
 # Except the dependencies, which we leave alone
 Godeps/**   -text=auto