Update ChangeLog for v2.1.3 release
Update ChangeLog for v2.1.3 release

Signed-off-by: Joachim Nilsson <583c295fd7602c168ad814279bbc3894ba65f5d6@gmail.com>

troglobit/netcalc,troglobit/sipcalc,troglobit/netcalc,troglobit/sipcalc