fix(controller): fix logging of limit changes on release
docs(logger/syslog): amend syslog server docs
docs(managing_deis): add custom slugrunner and slugbuilder to docs
fix(cache): update for deis/init

 - Added a sleep call to the cache test to wait for runit to settle
 - Fixed the permissions on the redis config file
chore(database): database uses deis/init

Ref #1561
chore(logger): logger uses deis/init

Ref #1561
chore(registry): registry uses deis/init

Ref #1561
chore(builder): builder uses deis/init

Ref #1561
chore(controller): controller uses deis/init

Ref #1561
chore(router): router uses deis/init

Ref #1561
fix(cache): update for deis/init

 - Added a sleep call to the cache test to wait for runit to settle
 - Fixed the permissions on the redis config file
fix(registry/tests): add sleep call for runit to settle
fix(controller/tests): add sleep call for runit to settle
ref(*): move ADD command to bottom

This effectively lets us cache the VOLUME, WORKDIR, EXPOSE, etc.
entries whenever we make changes to the components, speeding up local
development compilation.

Conflicts:
	builder/Dockerfile
	database/Dockerfile
	logger/Dockerfile
	registry/Dockerfile
	router/Dockerfile
docs(README.md): clarify current release and encourage use of master
fix(database): correct permissions on pg config