add LatLng.lat_dms, lng_dms, and Mappable.decimal_to_dms implementation
update lng_dms description
fix extraneous spacing
edit for style, from houndci's suggestion, use parentheses for arguments
formatting for style
style: add newline
space missing after comma
test: removed round(1) for 1.8.7 compatibility
Merge pull request #133 from matthucke/ddmmss

Ddmmss