Fixes
- [assistant] fixed browser side error with a empty server
- [config] switch buttons resized
- [core] fixed bug when admin can't edit apps in some cases
- [docker] added countly-core docker image without mongodb
- [docker] improved environment variable based configuration
- [enterprise] make sure drill library loads before cohorts and funnels
- [events] fixed padding on selectize items (omit segment)
- [jsdoc] updated doc template
- [plugins] use POST app config update instead of GET
- [push] UI fixes
- [push] fixed p12 credentials upload resulting in unknown error
- [push] improved geolocations support
- [sdk] install updated version of web sdk
- [upgrade] improved checks in mongodb upgrade scripts