Fixed broken copybin on Chrome@Mac.
add config option ignoreConfirmCancel to allow canceling changed dialogs without a prompt.
from patch comment https://dev.ckeditor.com/ticket/10028#comment:4 by Helmø
Fixes for syntax, comment in config.js file and editor.config.ignoreConfirmCancel moved in plugin.js.
Change default value from true to false and fix md.
Moved config variable to dialog plugin file.
Changed config variable name from ignoreConfirmCancel to dialog_noConfirmCancel.
Minor doc str fixes.
Changelog entry.
Merge branch 't/10028' into major
Initial uncleaned version of placeholder2 plugin.js
Changed default text in placeholder template and codestyle changes.
Placeholder regexp update.
Added handling for undesired keys in placeholder dialog "name" field.
Updated comments + minor codestyle change.
Renamed language entry name.
Removed placeholder2 plugin from default config.
Plugin cleanup.
Reduced count of not needed attributes for wrapping span.
Whitespace changes, extra comment removed.
Minor refactorization.