Collecting addresses for different kernels in addresses.txt

There's probably a better way to do this, but I don't really want to put
them all in the main .c file. Maybe some header that is included by
timeoutpwn.c...
Added target 3.12.9-1-ARCH
Exploit now runs three times faster
adding addresses for 3.11.0-88-mptcp
Merge pull request #4 from sajal/master

adding addresses for 3.11.0-88-mptcp
addresses for 3.8.0-31