Released libsidplayfp-1.7.1

Libsidplayfp (and its console frontend sidplayfp) is a fork of sidplay2 born with the aim to improve the quality of emulating the 6581, 8580 chips and the surrounding C64 system in order to play SID music better.

Changelog:
* Fix reported number of channels
* Install psid driver before placing tune, fixes BASIC tunes and /MUSICIANS/L/Legg_Stephen/Steigar.sid
* Apply volume to channels, not to chips output

Also available sidplayfp-1.3.1

Changelog:
* Fix time parsing code
* Fix some warning
* Fix a typo in man page

The Windows binary will be available from now on only in the 64 bit flavor.