Reorganize .gitignore for readability

It was either too forgiving or too ignoring
[skip scrutinizer] [skip travis]

.gitignore

@@ -1,58 +1,49 @@
 ############
 ## YOURLS
-############
 
-# Configuration
-*config.php
-user/*
-!user/config-sample.php
+# Ignore server configuration files
 .htaccess
 *.config
 *.conf
 [Rr]obots.txt
 
-# Languages
-!user/languages/
-
-# Plugins
-# Core plugins
+# Ignore everything in user/
+user/*
+# ... except config sample
+!user/config-sample.php
+# ... core plugins
 !user/plugins/hyphens-in-urls/
 !user/plugins/random-bg/
 !user/plugins/random-shorturls/
 !user/plugins/sample-page/
 !user/plugins/sample-plugin/
 !user/plugins/sample-toolbar/
-
-# Pages
+# ... example pages
 !user/pages/examplepage.php
-
-# Keep index.html
+# ... and index.html files
 !user/index.html
 !user/**/index.html
 
 ############
 ## Tests
-############
 
 includes/**/tests/
 build/
 coverage/
 phpunit.xml
+tests/yourls-tests-config.php
 tests/vendor/
 tests/data/auth/config-test-auth-hashed.php
+tests/data/htaccess/test*
 
 ############
 ## Environnement
-############
 
 # Windows image file caches
 Thumbs.db
-
 # Folder config file
 Desktop.ini
-
 # Mac crap
 .DS_Store
-
 # NetBeans files
 /nbproject/