Workaround for libuci-lua list semantics change.

Setting a list value of length one appends to a list in recent versions of
libuci-lua, whereas it used to always overwrite the contents of the list. This
commit works around this odd corner case by erasing the contents of the list
before setting it.
version update
Make bismark-mgmt use bismark-management-client
Remove invalid file
Add Giuseppe's censorship testing script.
minor cleansing
scheduled at 4 specific hours (6 times each)
Add netcat dependency
Merge branch 'master' of github.com:sburnett/bismark-packages