Fixed issue #341 "Table headlines cannot be combined using 'sum()'"
Implemented ticket #370 "Enable legends for bar charts"
Speed up the implementation of ticket #356 Used "sprintf()" instead of "stringstream", which is four times as fast.
Refactoring based upon tickets #287, #288
Fixed issue #362 "Issues with source-code like string contents"
Fixed issue #363 "Issue with source-code like string and the 'to_string()' function"
Fixed an issue in implementation of ticket #294
Fixed issue #366 "Issue with 'getfolderlist()'"
Fixed issue #364 "Issue in reworked resampler code"
Implemented ticket #294 "Improve linebreaks in the console"