Quickfix due that the Docker file has merge conflicts
Explicitly selecting Centos6 as the Base Image
Added php-ldap package

Enabled LDAP Support
Merge pull request #6 from Nekroze/master

Added php-ldap package
Update README.md
Sudo and fixing a MySQL setup issue while granting privileges to Zabbix.
Adding Traceroute through YUM.
Adding MySQL Tunning suggestions from CosmicQ.
Updated from master branch
Upgraded the entrypoint shell & moved to Java 1.8.0 OpenJDK

Upgraded to java-1.8.0-openjdk. See `/etc/profile.d/java.sh` within the
container.

Refactored the start.sh to support additional actions such as. Inside
the container the script is located at `/bin/docker-zabbix`

The script supports the following commands.: start|stop|restart|shell|status|summary

Example. Given a running container named _zabbix_.

Start the container.

```
docker run -it -P --name zabbix berngp/docker-zabbix
```

Restart the services and get the summary.

```
$docker exec -it zabbix docker-zabbix restart
$docker exec -it zabbix docker-zabbix summary
  The Monit daemon 5.1.1 uptime: 8m

  Process 'mysqld'                    running - restart pending
  Process 'zabbix-server'             not monitored - restart pending
  Process 'zabbix-agent'              Execution failed - restart pending
  Process 'zabbix-java-gateway'       not monitored - restart pending
  Process 'httpd'                     not monitored - restart pending
  System 'fc56255fd5c5'               running - restart pending
```