Added command line switch to generate bar charts in statslog-splitter.py
Merge branch 'master' into v7-stats-scripts
Added new option "chartscalcdelta" to generate charts with delta values instead of cumulative values.

Also fixed reading outputfile parameter in statslog-graph.py script.
Removed commandline arg count limit from scripts
Merge branch 'master' into v7-stats-scripts
Merge remote-tracking branch 'andre/v7-stats-scripts' into tmp