more consistency in presets..
* in general, display fields:
    operator, address, building_area, hours (where this makes sense)
* make kindergarten, school, college, university more similar
* show building_area for most craft=* and shop=*
* remove erroneous `tinsmith` file
* update README
* structure json files like:
    icon, fields, geometry, terms, tags, name
    (most json files were this way already)
Merge branch 'master' into preset-cleanup

Conflicts:
	data/presets/presets.json
	data/presets/presets/amenity/post_office.json
another round of preset cleanups:
* improve search terms, and remove some which were redundant
* add many missing presets under `shop=*` (from wiki)
* remove `vertex` geometry from many building-like presets
Merge pull request #2337 from bhousel/preset-cleanup

Preset Cleanups