Updated vignette file from master branch (see there for single commit history).
Corrected variable replacement in HungEtWang2010() and added optional variable parameter to Ferber2011.
replaceVariables gains parameter 'partial' + clean-up.
For all graphs with variables now the variables can be set via parameters.
Updated ToDo.
Added version numbers to report + further format/modularization.
Merged pre-R3.