**Labels**

[fbanning]

• scale elabels_textsize according to zoom level and/or edge length
• observe state of hide_elabels and hide_nlabels and dynamically change plot
• fix elabels for duplicate ways (i.e. reduce label overlap)
• look into further performance improvements when there are a lot of elabels

[fbanning]

I'm currently unsure if properly functioning labels are really needed for v0.1.0. Maybe the node/edge inspection on mouse hover is enough because it already provides an easily accessible way to obtain node/edge fields like street names.