Currently only the app can modify/delete important data like saves in PSP folder.
On Blackberry, the app is the user account (app_10283782). The currently logged in user is the group (shared_1000). Then other will be all users on the system.
So let's make it that the user can modify their own data.
New UNUSABLE_MMAP code path for platforms that cannot use the required flags (Xbox 360, Symbian). Falls back to malloc() instead.
N1 define for compilers (GCCE) that don't like to assume (int)-1 will safely cast to (char)-1.
Miscellaneous space->tab fixes.
Add missing #include to various files.
strings.h isn't provided by MSVC so we don't include it there; it's needed
for other OSes/compilers.
Get rid of pre-ISO-C malloc.h includes; malloc is provided by stdlib.h.
Fixes some linuxisms.
Prepend __builtin_ to __clear_cache, calling it without the prefix is a
GNU extension.
