Problem description: The default name of a clock widget with time type = Host time is not logical if this widget is located on a template dashboard:
If time type = Local time, default name = Local
If time type = Server time, default name = Server
If time type = Host time, default name = Clock

It would be much more logical if for time type Host time he default Clock widget name would be "Host" if the widget belongs to a template, and the corresponding host name if this template is already attached to a host and widget is viewed from Monitoring => Hosts view

In MOnitoring => Screens view (in 4.0 and 5.0 versions) the name of the template is taken as defolt widget name in this case.

Steps to reproduce:

1. Open any existing template that has numerical items
2. Create a dashboard for this template
3. Add the following three "Clock" widgets:
   1. With empty name and time type = "Local time"
   2. With empty name and time type = "Server time"
   3. With empty name and time type = "Host time" and specify eny numerical item in the Item field
4. Check widget names

Result: the widget names are "Local", "Server" and "Clock" respectively
Expected: "Local", "Server" and "Host" .