Use AdapterResponse's as abstraction layer between probes and adapters
Typo fix
Merge branch 'master' into adapter-response

Conflicts:
	src/PhpProbe/Adapter/NetcatAdapter.php
Remove unnecessary use declaration
add checkers for splitting responsibilities
Remove unnecessary Scrutinizer CI config options
Checkers optimizations + generic responseTime checker
Fix parameters order for implode
AdapterResponse's doc updated
Unit tests for AbstractProbe
Enhanced error messages handling and display.
Merge branch 'adapter-response'
Added basic templating capabilities
Added support for adding extra HTTP headers and "insecure" HTTPS (self-signed certs)
Output template can now be specified in YAML config or via Manager's setTemplate method
Added monolog logging library dependency
Log errors generated by checkers
Add logger level on probes, README updated
More explanations on logger usage
Update "framework" example in README with checker