Stabilize dev-python/pyserial-2.5_rc2.
Tested on x86 chroot, compiles fine. Additionally: twisted[serial] also compiles and passes almost all tests (fails on 2, but they also fail with pyserial-2.5_rc1 and don't seem to be relevant).
stable x86, thanks Kacper
Marked ppc/ppc64 stable.
Stable for HPPA.
alpha/arm/ia64/m68k/s390/sh/sparc stable
amd64 stable, closing