[mac] Update to v1.8.0-mac
update version to 1.8.0
update client version to 1.7.3
[mac] update to v1.7.2-mac
update version to 1.7.1
fixed upgrade sql for 1.7.0/mysql/seafile.sql
mac-1.7.1
[win] improve init seafile dialog
update build-server.py