Implemented ticket #633 "Visually inform the user, if the debugger is needing his attention"
Fixed issue #629 "'load -totable=TAB() -i' does not work as expected"
Fixed issue #620 "Procedure names and namespaces containing operators"
Fixed issue #619 "Name mangling in external procedures"
Improved the implementation of #630
Fixed issue #630 "if clauses accept command sequences"
Fixed an oversight in implementation of #622
Fixed issue #622 "GUI scaling at higher display scalings"
Fixed issue #627 "Statistics and selecting multiple columns or rows"
Fixed issue #635 "Calling 'clear' or 'delete' on a nonexistenttable should not throw an error"