Clean up functions.php

* Cover more if/else statements in braces {}

Breadcrumbs:
* Move the Breadcrumb Trail inserting out of functions.php and into
loop-meta.php
* Loop-meta.php is now loaded on posts and pages

Functions:
* cakifo_front_page() and cakifo_breadcrumb_trail_args() have been
removed
* cakifo_topbar_rss() is deprecated
* Deprecated functions are moved to the bottom

Other:
* Move some of the action and filter calls inside cakifo_theme_setup()
around