Style settings for note, rectangle and ellipse items. Possibility to edit interface and node labels.
Fixes #62.
Move dialogs to a dialogs package.
Fixes #66.
Fixes IOS image relative path problems.
New feature: option to uncompress an IOS image.
New feature: packet capture for IOS routers.
New feature: packet capture for the Ethernet hub and Ethernet, ATM and Frame relay switches.
New feature: packet capture for IOU (not working, issue with iouyap).
Merge remote-tracking branch 'upstream/master'