v1.1

Added options:

• Added isMulti option to options.contextMenu, default false. This allows a context menu to act upon multiple rows if set to true rather than deselecting other rows first, which is the default behavior.
• Added deselectAfterAction to options to allow you to keep items selected after an action occurs, default true
• Moved showSpeed option to options.contextMenu for consistency

Minor refactoring also performed.