Fix error in conditional operators priority
Improve protection from displaying errors to visitors
Improve main page template
Fix custom stylesheets on main page
Change timezone of news on main page to local timezone
Merge branch '4.5' of github.com:vichan-devel/Tinyboard into HEAD

Conflicts:
	templates/themes/basic/index.html
Merge 4.5

Conflicts:
	post.php
Merge remote-tracking branch 'upstream/master'