add export tags
Add test for wrapper sub with native parameter types.

Closes issue #12 in conjunction with NQP commit a886a77
Merge branch 'master' of github.com:jnthn/zavolaj
Update for sigilless variable spec changes, eliminating warnings.
Fix 07-writebarrier.t for Win32.
Fix Win32 NCI example to work portably.
Don't explicitly add the .dll.
Fix typo in README.

Some inconsistent naming in the CPointer REPR example, where both FooPointer
and FooHandle referred to the same class. Closes #14.
Fix fork example; bbkr++. Closes #17.
fix use of undeclared variable
Add tests for sized ints in structs.

Also tweaks the array member of structs test a bit (and once we have sized
ints in arrays it should likely be updated again).
Add tests for sized floats, and use is_approx instead of is for comparisons.
Add tests for sized ints and nums in arrays.
s/int8_t/char/ (C89 compat)