Missed a define in x64MemTools for when the thought process was Android == ARM
Also changes the variable we use for choosing which folders to copy to and from our jni file.
This has changed since the x86_64 build target uses the library folder x86-64, which is stupid and annoying.
Our defines were never clear between what meant 64bit or x86_64
This makes a clear cut between bitness and architecture.
This commit also has the side effect of bringing up aarch64 compiling support.
- remove unused variables
- reduce the scope where it makes sense
- correct limits (did you know that strcat()'s last parameter does not
include the \0 that is always added?)
- set some free()'d pointers to NULL
Ryan Houdek