some drafts in timeline
event group -> sort by first occurrence time
remove unused method
fix in install-fedora
fix critical bug in events: implement MaxHeap.delete function with the correct algorithm
fix format bug of Copy Time and Copy Date
change tuples to list in config files
bug fix in weekcal (move changeDate method from monthcal to cal_base)
some drafts around EventSearchTree
fixes around ui.focusTime and some cleaning
cleanings and duplicate removings in ui_gtk, and improvements in class design
cleanings in ui_gtk
cleaning: remove ui.keyDelay
cleanings again in ui and ui_gtk
cleaning in locale_man
timeline: cleaning and improvement in H:M:S time tick labels
timeline: fix a bug of last commit
fix time bug in LifeTimeEvent
cleaning and debug line
timeline: improvement in box placing