add switch for case sensitive search
GnoteListViewSnippetRenderer: highlight search results
add tooltips manager
add styles for tooltips
destroy tooltips on extension disable
ButtonsBar: use tooltips instead of statusbar
ButtonsBar: cleanup
cleanup
DialogNoteViewToolbar: add tooltips
DesktopNoteToolbar: add tooltips
Tooltips: fix
DesktopNoteContainer: add tooltips
close dialog on menu item activate
support multimonitor
DialogNoteView: fix show/hide with animation disabled
fixes #8
Dialog: fix positioning