nested business process support via command "goto service details"

[wasserman]

I have some business processes that reference other ones. Although the bp_node_bp_ref_icon link via hover to go to a linked business process is nice, the command link via the hand icon under "Information' still just goes to the check that the business process generates. I think it is much more intuitive that this would go to the associated business process. My two line hack makes it behave this way. I'll include it as a pull request.

I'm using Thruk 2.16-2 with the Thruk2 theme.