CIRCLE / cloud

Using join method on the nodes list instead of string concatenation. Logging if monitor info unreachable or None in get_monitor_info method.

Each node, which has unreachable monitor info shown in one error message.

The page now loads when the node can't reach the monitor info values e.g. cpu percent. It gets a default value 0. And if a node's monitor info unreachable shows
an error message.

If the monitor info can't get the values, the values get default 0.

also display the queue statuses on node detail

Closes #426

Closes #315

- wrong icon names
- fixed height for toplist
- some message if user has no templates shared with