Rename the StrAllocate* functions to Alloc*Helper to make it easier to tell them apart from the original StrAlloc* methods, and don't export them.
Add the StrAlloc*Secure methods back as wrappers around the StrCoreAlloc* functions.
Create wrapper functions in variable.cpp for Burn.
Merge pull request #106 from rseanhall/strutilsecure3

StrAlloc*Secure