Modernize permission language.

Modernize permission language.

Since the advent of the Hyperbole and a Half blog post addressing
what it means to be an adult
(http://hyperboleandahalf.blogspot.com/2010/06/this-is-why-ill-never-be-adult.html)
the word "everything" is no longer sufficient to describe the extent
of a given set of objects.  In this case, the EVERYTHING permission, which
is granted to administrative users within Evergreen, is updated to
ALL_THE_THINGS, so we can continue our path to be the most modern
("Next Gen", if you will) integrated library system.