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- Compiles fine but completely untested for the moment
- Also addressed many bugs for job analyzer templates

- adds support for compilation with GCC 9.1
- updates dependencies OpenSSL, BACnet, freeIPMI

- Now supports also standard deviation and percentile computation
- Multiple output sensors per analyzer can be defined, each performing
a different aggregation task
- QueryEngine has been slightly modified so as not to clear the input
sensor reading buffer (if any), thus allowing to accumulate sensor
values with subsequent calls

# Conflicts:
#	dcdbpusher/Makefile

- In the new implementation the sensor map used to speed up access to
sensor data is rebuilt synchronously when plugins are reloaded/loaded/unloaded
- Any threads accessing the sensor query callback will block until
the update has finished

- The MQTT topic of a sensor is now used to identify the file name of the
sink and is appended to the path given as input

- New method is lock-based and compatible with all features (e.g. REST API)
in the framework
- Performance impact is expected to be negligible as race conditions will
not be frequent

- The class is now derived from AnalyzerTemplate, reducing code
duplication

- Template for Job Analyzers, derived from AnalyzerInterface

Fix dcdbpushers broken daemonize option

See merge request !2

- Forward slashes are stripped out of MQTT topics before creating
the respective file sinks, if required

- The "relaxed" option can now be used also to control on-demand
analyzers, allowing for pipelining when in this mode

- UnitGenerator is now capable of generating job-associated units
- A job unit is hierarchical, and it has the sub-units related to the
nodes it was executed on as children
- Code is still untested

- "Fixed" segmentation fault occurring after the return of dcdbpusher's
main by not unloading dynamic libraries in PluginManager's destructor
- Error log messages in Aggregator plugin changed to Debug level
- Added Wno-unused-variable and Wno-unused-function compile flags
- Tweaked the stop method of TesterSensorGroup
- Re-worked the destructor of SARParser in ProcFS plugin