[Fix] Mailhog should be exposed to backend

nginx sites-available shoule only use *.conf

- fixes failing connection to host "mailhog" when sending mail via smtp
- mailhog needs to be available for the backend at Port 1025
- i.e. in a Laravel app .env should contain "MAIL_HOST=mailhog 

although most much of use case developer should modify laradock to suit their project. we can use *.conf.example to take effect.
but we also need a dummy nginx conf to info other newer to know how to config their nginx conf. the *.conf.example should be.

so i think we should only take *.conf to take effect. not *

Set Timezone

Set default setting to false for various Workspace installation options

Added TZ environment for MySQL Container

ElasticSearch - Change to official repository

Kibana - Change to official repository

Elastic.co announced they will pull out their official images from the Docker Registry and user their own. There will be no updates starting 6/20/2017.

Pulling needs explicit version. Currently 5.4.1

Elastic.co announced they will pull out their official images from the Docker Registry and user their own. There will be no updates starting 6/20/2017.

Pulling needs explicit version. Currently 5.4.1

- Laravel Envoy
- Laravel Installer
- LinuxBrew
- MS SQL Server

Merge master

Merge master 

git key  to pull code

Dockerfile-56 fill missing MSSQL section

* Add Kibana Container

* Add Kibana Port to env-example

git key  to pull code

跟进主干

Exec issue with workspace bugfix

Add laravel echo server

fix mongodb php extension config

- Sleep 45s is invalid
- /opt/mssql/bin/sqlservr is the correct path for mssql binary

This issue relates to https://github.com/laradock/laradock/issues/563, which also occurs on Mac. This has been one of the solutions proposed.

fix jenkins permission denied

adminer support mssql

Change DATA_SAVE_PATH default value avoid lost data