Fixed issue #781 "Brace autocompletion does not work on non-DE keyboards"
Implemented ticket #779 "Add checks for the correct column type in all necessary commands"
Fixed an issue introduced with #722
Deleted obsolete branch for ticket #650
Implemented ticket #650 "Read and write arbitrary ZIP files"
Improved implementation of ticket #650
Reading and writing TARs and GZs is now possible for #650
Reading and writing ZIPs is now possible for #650
Added initial implementation of packArchive() to #650
Added initial implementation to ticket #650