Remove RSS feed from homepage.

This speeds up the page load time tremendously.
Fix 404 issue with schemata link on schema pages.
Add extra operators to table search dropdown.

I've still gotta work out how to add support for IN and NOT IN
Initial code style re-work.

The plan is to bring all of the code style in the Chive codebase up to
date, then gradually begin ripping out various components and replacing
them with composer packages.

It might be worth checking out Yii 2.0 when it's released soon to see if
there's any sort of upgrade path, and if Yii 2.0 is actually worth
using.
Added support for installation-specific configuration.
Code style fixes.
Save login port when saving user config file.
Remove ability to sign in using a query string.

Hidden stuff like that is WTF
Removed concept of "valid browser" from login page.

It's not an application's responsibility to tell people to upgrade their
browser. If they can't work that out themselves, too bad.

Also removed javascript submission of the login form. So unnecessary.
Removed "translate me!" link.
Code style fixes
Removed "current language" stuff from login controller.

It didn't appear to do anything.
Moved login detection to the top of the login controller.
Small code style fix.
Changed visibility of various methods and instance variables.

A lot of them used to be private. They're now protected or public.

Includes some code style improvements.
Always save user config on demand, even if there are no settings to save

This means a user config file will always be there, even if (for some
reason) all settings get unset.
Code cleanup. Remove unused formatter object from index view rendering.
Ensure user config file is always saved, even if no settings have been configured
Reduced a margin for a login form element.
Code style cleanup.