Documentation update.
fixed the path for core/commands/templates
added possibility to supply database settings and domain via command line args
added silent installation / database_urls to the docs
added preliminary test

i am new to this
fixed wrong driver for PostgreSQL in dovecot conf
Merge pull request #16 from simme--/master

bugfix #490 and added possibility of silent installation using database-urls
Fixed silent installation and unit tests.

fixes #489
I forgot those modifications from 1.0.1 :p
Don't propose all extensions for top redirection.
Display help messages on 'hover' event.

fixes #492
Merge branch 'master' into features/relay_domains
Execute all unit tests.