LPC/       Documentation describing the programming language LPC.
efun/      The external functions which can be called by LPC objects.
           They are built in the gamedriver.
applied/   Applied functions are functions defined in LPC objects, which
           are called either by the gamedriver or by other objects.
concepts/  General documentation about features of LPmud and OSB. It
           explains terms used in the documentation of functions and objects.
