add api documentation
Merge branch 'master' of https://github.com/musixmatch/api-proxy-node-js
Merge branch 'master' of https://github.com/musixmatch/api-proxy-node-js
big fix: syntax error on user variable
Merge branch 'master' of https://github.com/musixmatch/api-proxy-node-js
Merge branch 'master' of https://github.com/musixmatch/api-proxy-node-js
Merge branch 'master' of https://github.com/musixmatch/api-proxy-node-js
Merge branch 'master' of https://github.com/musixmatch/api-proxy-node-js
Fixing android notification format
Merge branch 'master' of https://github.com/musixmatch/api-proxy-node-js