Include tab color when duplicating tab.
Include tab color when duplicating tab.

Fixes #2029

josegonzalez/sequelpro,abhibeckert/sequelpro,eric-seekas/sequelpro,eric-seekas/sequelpro,chenbk85/sequelpro,kaneshin/sequelpro,abhibeckert/sequelpro,dnl-jst/sequelpro,kaneshin/sequelpro,kaneshin/sequelpro,treejames/sequelpro,CoolSwitcher/sequelpro,CoolSwitcher/sequelpro,josegonzalez/sequelpro,Jellyfrog/sequelpro,CoolSwitcher/sequelpro,treejames/sequelpro,treejames/sequelpro,dnl-jst/sequelpro,CoolSwitcher/sequelpro,eric-seekas/sequelpro,dnl-jst/sequelpro,chenbk85/sequelpro,josegonzalez/sequelpro,josegonzalez/sequelpro,abhibeckert/sequelpro,chenbk85/sequelpro,dnl-jst/sequelpro,abhibeckert/sequelpro,Jellyfrog/sequelpro,leichunxin/sequelpro,leichunxin/sequelpro,Jellyfrog/sequelpro,leichunxin/sequelpro,kaneshin/sequelpro,chenbk85/sequelpro,eric-seekas/sequelpro,treejames/sequelpro,Jellyfrog/sequelpro,leichunxin/sequelpro