[fix] Don't merge remote `package.json` during deploy
[fix] Don't merge remote `package.json` during deploy

This behavior caused a regression when `scripts.start` was changed
locally. Remote `package.json` would override local setttings and cause
`jitsu.package.validate` to report a problem with missing start script.

This bug could've caused unexpected behavior if `script.start` from
remote `package.json` was still present on local file system -
application would end up starting old `scripts.start`.

mbejda/jitsu,nodejitsu/jitsu,rowhit/jitsu