Add .gitattributes file

Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
Closes: https://github.com/erikd/libsndfile/pull/144

.gitattributes

@@ -0,0 +1,15 @@
+# Set the default behavior, in case people don't have core.autocrlf set.
+* text=auto
+
+# Declare files that will always have CRLF line endings on checkout.
+*.ac text eol=lf
+*.am text eol=lf
+*.m4 text eol=lf
+*.pc text eol=lf
+*.spec text eol=lf
+*.sh text eol=lf
+
+# Explicitly declare text files you want to always be normalized and converted
+# to native line endings on checkout.
+*.c text
+*.h text

.gitignore

@@ -27,7 +27,6 @@
 .DS_Store
 .deps
 .dirstamp
-.git*
 .libs
 Build/
 CMake/config.h.in