su-tunnel for NetBeans added.

This is an extended version of Noel's original script, which was made
since I could not find a way to run the script with the currently opened
file. What it does? It checks which .rb script (in specified folders)
was changed last and it then runs it.

If someone has a better way, please let me know!
Merge remote-tracking branch 'origin/master' into pr/2
refractored netbeans stuff
Fixed sketchup_build and updated README.

I needed to fix calling of tunnel_ide, as arguments were not passed
correctly. I achieved this by specifying ARGV, which namely throws a
warning, but it works correctly. If someone knows how to surpress this
warning, please fix it or let me know how to do it.

I also updated readme with information on how to set su-tunnel in
Netbeans. If you miss some information, please let me know and I will
update it.
Merge pull request #4 from Nazz78/pr/2

Fixed sketchup_build and updated README.
Merge remote-tracking branch 'origin/pr/2'