gcc-4.9.1: Add patch to solve devirtualization problem. Fix another patch.
python2: Add more patches.
make: Update to 4.1
openssl: Update to 1.0.1j
sqlite: Update to 3.8.7
xz: Update to 5.0.7
termcap: New script.
readline: Build with termcap instead ncurses.
Update subtargets.