Cosmetic : renamed fields.
Attributes as a factory of SExpressionBuilder

Keep a reference to SExpressionBuilders (the factory) instead of SExpressionBuilder, to avoid concurrency issues.
ENGINE-1814, evaluateAtProcessInstantiation is working on initializing process
add in the incident log the exceptions
Keep a reference on the DocumentBuilder factory instead of DocumentBuilder in order to avoid concurrency issues.
Usage of a Factory for the *DocumentBuilder

Keep a reference to a factory of *DocumentBuilder instead of the DocumentBuilder
itself, in order to avoid concurrency issues.
Increse timeout
[ENGINE RELEASE] Created the release 6.1.0-rc-16
[ENGINE RELEASE] Created the release 6.1.0-SNAPSHOT
Fixed document URL problem due to DocumentBuilder refactoring
Merge branch 'CoreProduct'
NFR: We do not create / drop tenant anymore for each test class