[TASK] Exclude several files and folders from dist archives

Refs #2

Signed-off-by: Torben Hansen <derhansen@gmail.com>

Author: derhansen

.gitattributes

@@ -0,0 +1,7 @@
+* text=auto
+/.Build export-ignore
+/.github export-ignore
+/Tests export-ignore
+/.gitattributes export-ignore
+/.gitignore export-ignore
+/ext_emconf.php export-ignore