6249645 spec2trace passes Meta_info structure by value

Summary:
All comments in bug apply.

Patch:
http://icculus.org/~eviltypeguy/6249645.patch

Lint/cstyle Patch (must be applied after original patch):
http://icculus.org/~eviltypeguy/6249645_lint.patch

Solution:
The solution involved changing functions to take a pointer instead of a structure, and passing by reference instead of by value.

Testing:
Need guidance.