Fix issue #66 : pass network name from ank to the web vis to display in the title

Here's an attempt to do it.
There surely was a better way for that, but I'm not yet familiar enough with the code to do it (i.e. couldn't figure where I could find the network name graph attribute as there was nothing in the ANM/graphml parser/console_script mentionning it).
I choosed to assign names based on the file name.
Feel free to reject/comment/... it can only get better I guess.