Monitored: Improve deprecation warning and documentation

Use the warnings module for deprecation warnings as this includes the context (file/line) where the problem occured. Also update the doxygen documentation.

This merge request affects 1 package:

• Control/AthenaMonitoring

Adding @ssnyder ,@rbianchi as watchers

added Core master review-pending-level-1 labels

CI Result SUCCESS

	Athena	AthSimulation
externals
cmake
make
required tests
optional tests

Full details available at NICOS MR-20793-2019-01-31-20-04
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
CI Jenkins server is switched to https://atlas-sit-ci.cern.ch. It is accessible world-wide (behind CERN SSO). In old links to Jenkins server aibuild080.cern.ch:8080 should be replaced with atlas-sit-ci.cern.ch For experts only: Jenkins output [CI-MERGE-REQUEST 33089]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit 0610a303

added sweep:ignore label