update api reference with section on class constructors
update api reference with section on class constructors

rlugojr/Leaflet,Trufi/Leaflet,iOffice/Leaflet,geoloep/Leaflet,scaddenp/Leaflet,geoloep/Leaflet,iOffice/Leaflet,CapeSepias/Leaflet,Neorth/Leaflet,iOffice/Leaflet,Ubisense/Leaflet,Leaflet/Leaflet,geoloep/Leaflet,akrzyzanowskino/TeamSE,iZucken/Leaflet,CapeSepias/Leaflet,jasonoverland/Leaflet,msiadak/Leaflet,brah/Leaflet,Ubisense/Leaflet,stefanocudini/Leaflet,Trufi/Leaflet,jasonoverland/Leaflet,sisou/Leaflet,davojta/Leaflet,tsantacruz/RotationalMarker,iZucken/Leaflet,Neorth/Leaflet,akrzyzanowskino/TeamSE,sisou/Leaflet,Neorth/Leaflet,AP-whitehat/Leaflet,tsantacruz/RotationalMarker,Leaflet/Leaflet,stefanocudini/Leaflet,frogcat/Leaflet,codeator/Leaflet,davojta/Leaflet,frogcat/Leaflet,Trufi/Leaflet,stefanocudini/Leaflet,msiadak/Leaflet,rlugojr/Leaflet,scaddenp/Leaflet,scaddenp/Leaflet,brah/Leaflet,AP-whitehat/Leaflet,CapeSepias/Leaflet,codeator/Leaflet,davojta/Leaflet,Ubisense/Leaflet,Leaflet/Leaflet,frogcat/Leaflet,rlugojr/Leaflet,tsantacruz/RotationalMarker,jasonoverland/Leaflet,msiadak/Leaflet,AP-whitehat/Leaflet,iZucken/Leaflet,akrzyzanowskino/TeamSE,sisou/Leaflet,brah/Leaflet,codeator/Leaflet