Tweaked gitignore

gitignore removed all composer and npm files, so automated builds would fail

conf/site/node_modules/adjust-sourcemap-loader/codec/index.js

@@ -0,0 +1,11 @@
+module.exports = [
+  require('./webpack-protocol'),
+  require('./webpack-bootstrap'),
+  require('./bower-component'),
+  require('./npm-module'),
+  /* insert here any additional special character CODECs */
+  require('./output-relative'),
+  require('./project-relative'),
+  require('./source-relative'),
+  require('./absolute')
+];