Search box for UUID (hostname or url node)

[Rafiot]

Each Node (hostname tree and URL tree) has a UUID, adding a searchbox to put a UUID in in he main page -> load the tree and put a red box around the node.

Dependencies:

• Dump a pickled tree to keep the UUIDs after first generation
• For each pickle, dump the list of all UUIDs (Hostname/URL) in the directory for searching later

Requirements:

• Force delete pickle for a tree (needs confirm box)

[Rafiot]

Idea: similar call as the locate on tree feature from the hostnode popup.

[Rafiot]

It is now possible to get a permanent URL to a specific hostnode.