Allow task names to be taken from the GPX <name> tag

[zstadler]

Description

The GPX recording produced by my navigation app includes notes I enter as waypoints. However, when I open the trace with Potlatch 2's "Tasks" button, the tasks list is empty.

Cause

The note is stored in the <name> tag, but Potlatch 2 does not consider this tag.

Potential fix

Please add the <name> tag to the list of tags used for extracting task text.