Update mpc.c
add a unimplemented library function
Merge pull request #15 from TTiga/patch-1

add a unimplemented library function
Fix typos: 'MPC_PRIMITIVE' (mpc.c), and 'stripped'/'stripping' (README.md)
Merge pull request #17 from david135/master

Fix typos: 'MPC_PRIMITIVE' (mpc.c), and 'stripped'/'stripping' (README.m...
Merge pull request #1 from orangeduck/master

update