fixes #3312 - support /users/extlogin as a login page based on REMOTE_USER

Fixes #3569, #3210 - Use port from foreman_url for templates

fixes #3578 - minor SQL and whitespaces updates to the smart proxy class

Fixes #3196 - Switch tokens to default to on

Fixes #3182 - Make IP optional in some circumstances

fixes #3205 - Extract and refactor report importing logic

This patch extracts all report importing logic into seperate importer and status classes.
long term this could allow:

1. aliases methods for async operations
2. different types of reports imports (based on reporting type).

fixes #1830 - auto assign puppet proxy if its not defined upon facts/reports event

Fixes #3481 - Don't have to set a hostname for each interface, but it must be unique if it is set.

[REFACTOR] fixes #2967 - refactored Fact Importer

Based on Dmitri Dolguikh <dmitri@appliedlogic.ca> original patch.

- renamed original fact_importer class to fact_parser class
- moved fact handling logic to its own fact_importer class
- fact importer now assumes single-value facts...

fixes #3364 Add option to disable automatc host creation when a report is received