Issue #261: Change highlight prompt in Create Seam Allowance tool when adding a line (dismine/valentina)

New issue 261: Change highlight prompt in Create Seam Allowance tool when adding a line https://bitbucket.org/valentinateam/valentina/issue/261/change-highlight-prompt-in-create-seam

Susan Spencer:

In the Details mode, using Create Seam Allowance tool, the tool will highlight a line to prompt the user to select it. This should change to highlight the point at the end of the line, as the user should select the end point, not the line.