bugfix: gui: exception handling crashed when it should have displayed the exception on the screen
bugfix: select queries relied on fixed column order which caused the program to crash if the column order of a database file was different than expected
improved rendering speed of very long chat messages (clipping)
bugfix: split messages by smilies did not work correctly and caused parts of messages to be displayed more than once
always show chat selection, even if messages window has the focus
feature: sorting columns by clicking; replaced usage of buildTimestampStringW with formatTimestamp
timestamp formatting: check for today, do not print date but time only then
updated test data
added changelog
gitignore
changelog