minor #117 added gitattributes - exclude tests and dev files from archives (iamvar)

This PR was merged into the main branch.

Discussion
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added gitattributes - exclude tests and dev files from archives

Commits
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989c7c2 added gitattributes - exclude tests etc from archives

Author: weaverryan

.gitattributes

@@ -0,0 +1,6 @@
+/tests export-ignore
+/phpunit.xml.dist export-ignore
+/.gitattributes export-ignore
+/.gitignore export-ignore
+/.php_cs.dist export-ignore
+/.travis.yml export-ignore