ISPN-4494 OSGi tests fail on jdk8

Disable the OSGi tests when running on jdk8 and jdk9.
ISPN-4340 Changes to programmatic and declarative config to enable auto-config for indexing
ISPN-4340 Update documentation
ISPN-4340 Server related indexing auto-config support
ISPN-4340 Changed autoConfig property setter and propagated it to the immutable config object, make IndexOverlay not exposed and allowed TypedProperties.putIfAbsent to be chainable