Prevent unnecessary files from distribution (#92)

Use .gitattributes to tell git what to ignore during exports.
This will prevent GitHub from adding those files to an archive.

Composer will use the GitHub archive as distribution while downloading.

This prevents none necessary files on production systems. This also
reduces file size of archive and should save disk space and other
resources.

.gitattributes

@@ -0,0 +1,11 @@
+Tests export-ignore
+.github export-ignore
+
+.gitattributes export-ignore
+.gitignore export-ignore
+
+dependency-checker.json export-ignore
+ecs.php export-ignore
+phpcs.xml.dist export-ignore
+phpstan.neon export-ignore
+phpunit.xml.dist export-ignore

Documentation/Changelog/1.4.0.rst

@@ -0,0 +1,35 @@
+1.4.0
+=====
+
+Breaking
+--------
+
+Nothing
+
+Features
+--------
+
+Nothing
+
+Fixes
+-----
+
+Nothing
+
+Tasks
+-----
+
+* Prevent unnecessary files from distribution
+
+  Use ``.gitattributes`` to tell git what to ignore during exports.
+  This will prevent GitHub from adding those files to an archive.
+
+  Composer will use the GitHub archive as distribution while downloading.
+
+  This prevents none necessary files on production systems.
+  This also reduces file size of archive and should save disk space and other resources.
+
+Deprecation
+-----------
+
+Nothing

ext_emconf.php

@@ -11,7 +11,7 @@ $EM_CONF[$_EXTKEY] = [
     'author' => 'Daniel Siepmann',
     'author_email' => 'coding@daniel-siepmann.de',
     'author_company' => '',
-    'version' => '1.3.0',
+    'version' => '1.4.0',
     'constraints' => [
         'depends' => [
             'core' => '',