added scaleline directive

Conflicts:
	geoportailv3/static/js/maincontroller.js
fixed linter errors
fixed missing require
added basemap
Merge pull request #74 from Geoportail-Luxembourg/jk-basemap

added basemap
linter for basemap
Merge pull request #75 from Geoportail-Luxembourg/linter-jk

linter for basemap
Stricter typing in appScaleline
Use quotes for scope properties
Merge pull request #76 from Geoportail-Luxembourg/scaleline

Scaleline
top & bottom bars, leftbar, full size map