Fix byte-safety issues & actually test for them
diff --git a/.gitignore b/.gitignore
index 5982f9b..eb45390 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,8 @@
 !application/logs/index.html
 !application/logs/.htaccess
 
+composer.lock
+
 user_guide_src/build/*
 user_guide_src/cilexer/build/*
 user_guide_src/cilexer/dist/*