update notebook quickhelp on new shortcuts
removing keyboard shortcuts should also update help
rebuild.QuickHelp event sets the dirty bit

QuickHelp is rebuilt on show if the dirty bit was set.
remove recreation of QuickHelp
first pass at capitalizing keyboard shortcuts
prettify combo keyboard shortcuts
fix capitalization of mode-switching keys
DRY: style in one place, removed code duplication
semicolon fixes buttress half of my js commits
don't color code in crimson

do alliterate, aforementioned color alternative alias is amaranth
remove stale modal dialog from the DOM
capitalize keyboard shortcuts in the tour
wider style for keyboard shortcuts
use - for shortcut separators
handle keyboard shortcuts ending with '-'
better handling of minus
really fix the '-' key shortcuts now
fix MacOS specific shortcuts, thanks @minrk
Merge pull request #5049 from ivanov/quickhelp-update

update quickhelp on adding and removing shortcuts