chore(package.json): remove irrelevant files, add main property

chore(release): release v3.0.0

chore(release): release v2.2.1

chore(release): release v2.2.0

chore(release): v2.1.0

core(release): v2.0.2

add source map

fix actor property

update bower ignore

updating version to 1.4.1