Merge pull request #1275 from datadesk/master

Added more presets for the amnenity=parking tag. For #1273.
Tweak parking preset; build
moving to SVG for UI graphics.
reworked background reset button.
fine-tuning bg adjustment ui.
use svg for radial menu.
fix error in cursor.
optimizing sprite in img + adding unoptimized sprite to svg directory
Merge pull request #1282 from systemed/svg-ui

Replace PNG sprite with SVG sprite
Fix global leak
Camel case
Add lanes field (fixes #1303)
Refine focus behavior for inspector (fixes #1277)

Auto-focus the search field only right after finishing drawing.
At that point, the radial menu isn't shown anyway. So then the
flow for correcting geometry before assigning a preset is:

 1. Draw.
 2. Finish drawing. The search field is focused, and no
    radial menu is open.
 3. Click again to reselect the feature and show menu.
    Now the search field is blurred.

In other words: when the menu is shown, search should not be
focused. When search is focused, the menu should not be shown.
Prevent duplicate consecutive nodes (#1296)
FF can't focus an SVG element
Fix AddPoint's use of Select mode
Show preset grid for untagged features (fixes #1258)
More vertex presets
Add Railway Platform preset
Added highway=pedestrian preset for roads convertered into walkways, towns squares, shopping plazas, etc. Also, gave the small footway alternative tag the ability to be saved as an area for small walkway areas connected to sidewalks. For #1304.