update stable branch changelog for 0.7.2 [skip ci]
update stable branch changelog for 0.7.2 [skip ci]

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