[README][xs]: update changelog for v0.6 and v0.7 releases.
[README][xs]: update changelog for v0.6 and v0.7 releases.

GerHobbelt/recline,rjsteinert/recline,acouch/recline,modulexcite/recline,modulexcite/recline,boban-dj/recline,GerHobbelt/recline,beni55/recline,rjsteinert/recline,beni55/recline,rjsteinert/recline,gotjoshua/recline,NuCivic/recline.js,gotjoshua/recline,okfn/recline,NuCivic/recline.js,acouch/recline,gotjoshua/recline,boban-dj/recline,beni55/recline,NuCivic/recline.js,okfn/recline,GerHobbelt/recline,okfn/recline,boban-dj/recline,acouch/recline,modulexcite/recline