minor changes.

Signed-off-by: liuyanghejerry <liuyanghejerry@126.com>
update: translation.

Signed-off-by: liuyanghejerry <liuyanghejerry@126.com>
implenment shortcut editing feature.
add shortcut descriptions.
Update translations.
change: better event module for tablet support.
tryfix: canvas cannot be good with tablet.

Signed-off-by: liuyanghejerry <liuyanghejerry@126.com>
revert: Edit menu in MainWindow.

Signed-off-by: liuyanghejerry <liuyanghejerry@126.com>
change: all about tablet support.

Signed-off-by: liuyanghejerry <liuyanghejerry@126.com>
Merge branch 'dev' into tablet

Conflicts:
	src/painttyDesktop/painttyDesktop.pro
	src/painttyDesktop/translation/paintty_ja.qm
	src/painttyDesktop/translation/paintty_ja.ts

Signed-off-by: liuyanghejerry <liuyanghejerry@126.com>