Initial commit
Check variables first before using them
Added new code to add new categories and display them + some small fixes
Some XHTML fixes (to keep in line with Ander's work!)
Another XHTML fix
Add code to delete categories
Fix bug causing an empty data/settings/modules/blog/categories.dat
XHTML fix
Improve category check
Small fix
Added code to make new posts and edit posts
Add code to display posts, edit posts and delete posts
Add code to create a post index file
Update delete code to also delete the post from post index
Add code to display posts
Various fixes and enhancements
Some work on the blog module
Some first code for posting and displaying reactions
Make sure reactions are kept when blog post is edited
Finish blog module (added code to edit and delete reactions), should be ready for merge with main branch