Removed duplicate logic
Most feature scripts now have 'singlenode' flag for easier usage

Some cleanup to the document realted feature scripts

Due to some different behavior of the distributions that may be used for docker setups it was necessary to implement some checks for supervisord and its configurations

Due to some different behavior of the distributions that may be used for docker setups it was necessary to implement some checks for supervisord and its configurations

 with '#' will be ignored, and an empty message aborts the commit.
 On branch 7.10.3
 Your branch is up-to-date with 'origin/7.10.3'.

 Changes to be committed:
	new file:   config/dovecot/etc/dovecot/conf.d/10-auth.conf
	new file:   config/dovecot/etc/dovecot/conf.d/10-logging.conf
	new file:   config/dovecot/etc/dovecot/conf.d/10-mail.conf
	new file:   config/dovecot/etc/dovecot/conf.d/10-master.conf
	new file:   config/dovecot/etc/dovecot/conf.d/10-ssl.conf
	new file:   config/dovecot/etc/dovecot/conf.d/15-lda.conf
	new file:   config/dovecot/etc/dovecot/conf.d/20-imap.conf
	new file:   config/dovecot/etc/dovecot/conf.d/20-lmtp.conf
	new file:   config/dovecot/etc/dovecot/conf.d/20-managesieve.conf
	new file:   config/dovecot/etc/dovecot/conf.d/90-acl.conf
	new file:   config/dovecot/etc/dovecot/conf.d/auth-static.conf.ext
	new file:   config/dovecot/etc/dovecot/dovecot.conf
	new file:   config/dovecot/etc/entrypoint.sh
	new file:   config/dovecot/etc/initial-config.sh
	new file:   config/dovecot/etc/supervisor/conf.d/dovecot.conf
	new file:   config/dovecot/etc/supervisor/conf.d/postfix.conf
	new file:   config/dovecot/etc/supervisor/supervisord.conf
	modified:   features/codecept.sh
	new file:   features/dovecot.sh
	new file:   lib/dovecot.bash
	modified:   setup/install-dovecot.sh

-add dovecot --install, --enable and -disable. now have to remove static entries and replace them with variables.

supervisord is in epel repositories on centos

Added sym-link to docker-compose singlenode file by default to make life easier 

Moved docker-compose singlenode file to the repo root
removed docker build script as it is not really needed
Enabled Java setup flag which was missing for docker

7.10.3+ only

mysql 5.6 is not supported on buster

Since documents is still not merged / installable i removed it from the default setup. Feel free to try it later on manually by adding the repos.

Missed some distribution check

Relatime packages got removed

Configurable via config/config (type and version)