GUACAMOLE-1147: Add support for additional LDAP properties in Docker container

[ghost]

Hi !

I need to add this variable to my docker-compose file to use my ldap.
So, I think i'm not alone, so I suggest to add it.

Maybe, it will be useful to add other variable like :

ldap-dereference-aliases
ldap-follow-referrals
ldap-max-referral-hops
ldap-operation-timeout

Thanks for your work !

[necouchman]

@Rwanito: Thanks for the contribution. However, in order for us to work through this you will first need to open a JIRA issue for the changes:

https://issues.apache.org/jira/browse/GUACAMOLE

After that you'll need to tag both the pull request and commit message(s) with the JIRA issue. Full contribution guidelines can be found, here:

http://guacamole.apache.org/open-source/

[ghost]

Thanks for your reply.
Is it ok, now ?

[necouchman]

One style change request. Also, you mentioned several other properties that you thought might want to be added - would now be a good time to add those?

[ghost]

Hi ! I commited my changes about the spacing et style.
Normally, now there is all ldap attributes from the doc in the start.sh.

[necouchman]

Looks good @Rwanito, thanks!