Remove pman
Remove appmon
Remove tv
Remove toolbar
Remove references to removed applications
Merge branch 'maint'
Merge branch 'maint'
Remove etop gui

Use observer for the gui part
Remove gs parts
Remove gs parts of the debugger
Merge branch 'maint'
Merge branch 'maint'
Merge branch 'maint'
Merge branch 'maint'
Remove the GS-based GUI of Dialyzer

R17 will come without support for 'gs' so the old gs-based GUI of dialyzer
has been removed.
Remove the --wx option and promore the --gui to use the wx-based GUI
Remove the hipe tool as it uses the now obsolete gs
Merge branch 'maint'
Merge remote-tracking branch 'upstream/maint'
Merge branch 'maint'