Tweaks to .gitignore to better ignore some deployment artefacts

.gitignore

@@ -1,11 +1,10 @@
 !/lib/themes/.keep
-!/log/.keep
 /.bundle/
 /.ruby-version
 /.sass-cache/
 /.vagrant.yml
 /.vagrant/
-/cache/
+/cache
 /config/*.deployed
 /config/aliases
 /config/config.tmp
@@ -28,20 +27,20 @@
 /files/
 /lib/themes/*
 /locale/model_attributes.rb
-/log/*
+/log
 /old-cache/
 /public/*theme/
 /public/alavetelitheme
 /public/asktheeu-theme
-/public/assets/
+/public/assets
 /public/down.current.html
 /public/down.html
 /public/download/
 /public/foi-live-creation.png
 /public/foi-user-use.png
 /public/google*.html
 /public/wordpress
-/storage/
+/storage
 /tmp/
-/vendor/bundle/
+/vendor/bundle
 /vendor/data/