update CHANGES.txt to reflect 0.46.4 changes
update CHANGES.txt to reflect 0.46.4 changes

EvilMcJerkface/crate,aslanbekirov/crate,gmrodrigues/crate,adrpar/crate,puneetjaiswal/crate,husky-koglhof/crate,sunny256/crate,EvilMcJerkface/crate,gmrodrigues/crate,husky-koglhof/crate,crate/crate,aslanbekirov/crate,crate/crate,puneetjaiswal/crate,husky-koglhof/crate,EvilMcJerkface/crate,puneetjaiswal/crate,crate/crate,adrpar/crate,aslanbekirov/crate,adrpar/crate,sunny256/crate,sunny256/crate,gmrodrigues/crate