* Less string copies
* Some general cleanups
* Add extra param to runloop_message_queue_push so we can pass size_t
of the message
* Consistent conventions for local variable usage for certain things
* Massive reduction in heap space allocation, going from settings struct
264kb to 119Kb
* Use NAME_MAX_LENGTH for base paths/names, etc
* Use DIR_MAX_LENGTH for directory sizes
* steam.c - cleanups:
* Use string_to_lower from libretro-common/stdstring.c instead of
its own version
* Some stylistic changes
* Rewrite strncpy calls into strlcpy/strlcat/manual assignment
* Make it C89 compliant
* Some unused variables
