refs #5106; + listener/emitter
Merge branch 'master' of http://git.centreon.com/centreon
indent code
refs #5102
Merge branch 'master' of http://git.centreon.com/centreon

Conflicts:
	application/class/Centreon/Core/Bootstrap.php
* Refs #5115 : Add loggers to bootstrap
prepare unit tests
Merge branch 'master' of http://git.centreon.com/centreon
indent code
* Refs #5116 : Add cache system
Merge branch 'master' of http://git.centreon.com/centreon
* Refs #5116 : Add cache loading to bootstrap
* Better coding style
closes #5120
closes #5102
Merge branch 'master' of http://git.centreon.com/centreon
refs #5106; + db queries
Merge branch 'master' of http://git.centreon.com/centreon
Merge branch 'master' of http://git.centreon.com/centreon