PLOT: added functions in all plots except nvl
PLOT: added functions in nvl plots
PLOT: fixed some warning msg. when plot. function
PLOT: removed default statistics and runtime plots
PLOT: removed name-attribute in custom plot
PLOT: renamed name attr. in config to filename
PLOT: removed plot-config suffixes from config
PLOT: added xrange and yrange to custom plots
PLOT: added mathematical expressions classes

Source: https://github.com/darius/expr
PLOT: parts of custom-plot-parse code improved
PLOT: added ExpressionData class
PLOT: added math. expressions to custom plots
PLOT: fixed datetime bug
PLOT: added some mathematical example plots
splits up plotting config into multiple files
Log costs of swapping
Add the ability to do only a limited number of swaps
Show the error message for the BoundaryStrategy only once
Bugfix: contains(Edge) was defined the wrong way for multimaps
Rename plotting key