Foreman » Installer

Add Travis CI test to build/install

Replace LOGDIR to work within the specified PREFIX, and replace
CONFIG_DIR to prevent config files from the local directory being used
in preference to those from the installation prefix.

Fixes #10369 - added support for scenarios

Fixes #5488 - fixed hook deprecation warning

- code from installer executable was moved to hooks
- services details in post-install message printed out on success only

Add --detailed-exitcodes arg

refs #3272 - print new user/password after installation

Reuse color support from Kafo

Installer output now uses color scheme selected by user. Also we don't
have to check color configuration manually. HighLine is already set by
Kafo.

rely on the basename of the script so others can override the location

This change allows katello-installer to use its own configuration file
but re-use the logic contained within foreman-installer.

Fixes #3977 - Don't re-open a Highline colourscheme

Fixes #3610 - explains error detection problems

Fixes #3237 - add --reset-db-feature