* Show composer status in web validate.
Don't duplicate in validate.php
* Create variable to check if a group has been completed.
No longer skips database checks.
Extract a base class.
Fix locate_binary and find_executable issues (mostly exposed by lack of db)
* Update Validator.php
* fix: improve poller validation
remove failures when there are duplicate poller entries
add warning that there are duplicate poller entries
link to the poller log in the webui
small fix to getBaseURL() to avoid exception when run from cli.
* Re-run poller cleanup to try to reduce the users with duplicates.
* refactor: convert validations to modules to prep for gui integration
* accidentally dropped, schema update
* fix accidental output to webui
* mention discovery-wrapper.py and re-arrange.
* refine some fix statements
* rename the Config validation group to Configuration.
* fix some scrutinizer issues
remove as many local functions from validator.php as possible
move extensions from pre-check
remove duplicate timezone check
looks like there is some db schema differences between mariadb 10.1 and 10.2, investigating
* mariadb version diff take2
* Check schema version first for database.
Remove stop to go back to command line for install docs.
Add helpful link when there is no devices added to /addhost
* fix incorrect validation for empty string defaults
* Fix style
* Add additional file permissions checks
* catch exception and fail for invalid timezone
Change visuals a bit.
* add php version warning
* fix space
