Drop checkinstall from dependencies.  It is not used, as far as I can tell.
Drop lua-sec from dependencies.  It is not used, as far as I can tell, and is a library that should be pulled in by packages that need it.
Drop python-argparse from dependencies, it is now a virtal package provided by libpython2.7-stdlib.
Drop lua-sec, python-augeas, python-beautifulsoup, python-bjsonrpc, python-docutils and python-lxml from dependencies.  None of them are used, as far as I can tell, and they are libraries that should be pulled in by packages that need them.