Incorrect 'Insert Row' tooltips on Mac.

Description:

Tooltips for Insert row on the editor tool bar have windows keys instead of Mac keys 

Issue is confirmed in v3 of Confluence Server 6.3.1 & above. 

Steps:

1. Go into edit mode on mac
2. Create a table
3. Click inside table
4. Hover over insert row buttons with toolbar
5. Observe tooltips indicate Alt button which is a Windows function. Should be replaced with option.