Free-standing lines and arrows

Another new feature with version 1.1: you can draw lines and arrows freely on an Idea Page; they are no longer limited to connecting shapes as with previous versions of the software.

This new feature will make it easier to draw tables on Idea Pages, e.g. for laying out Scrum-style projects where you want to keep track of a tasks grouped as product backlogs, work backlogs, Sprint backlogs, etc.