Created generate_networks function
Added the generate_networks function to generate dynamic and contemporanous networks for any data set.
Fixed example in help documentation.
Fixed a bug with imputing nonvariable data. Added tests and examples. Refactored the polytime arg.
Merge branch 'master' into ae-generalize-networks
roxygen version number update
Regenerated help docs.
Merge pull request #1 from roqua/ae-generalize-networks

Generate networks for arbitrary data sets