New stroke-linecap style option with a VML alternative. For #1643.
New stroke-linejoin style option with a VML alternative. For #1843.
New stroke-linejoin style option with a VML alternative. For #1843.
Merge branch 'linecap' of github.com:datadesk/Leaflet into linecap
Merge pull request #1863 from datadesk/linecap

New stroke-linecap and stroke-linejoin style options with VML alternatives. For #1843.