[DROOLS-50] fix combined use of memberOf and null safe dereferencing
[DROOLS-51] fix positional constraint when using a null as value
fix mispelled package name
fix compilation failure
[DROOLS-54] fix QueryElement.clone by cloning also the contained pattern
JBPM-3512 - Allow developer-defined correlationId in addition to processInstanceId
ignore empty files in KieFileSystem
Set release version: 6.0.0.Alpha8
Set next development version: 6.0.0-SNAPSHOT
[DROOLS-61] generate a proper compilation failure when trying to use non-public classes in drl
Set release version: Drools 6.0.0.Alpha9 and uberfire 0.2.0.Alpha2
Set next development version: 6.0.0.-SNAPSHOT and uberfire 0.2.0-SNAPSHOT
Adding method needed for scenario testing
Fix FQCN and add other Converters
ignore empty files during incremental compilation
Incremental Build tests showing successive incremental builds give wrong messages
KieBuilder.buildAll().getResults() doesn't include errors added with incremental additions
fix incremental compilation when used multiple times in sequence
BZ913252, DROOLS-66 - fixing switch off URL caching issue
(cherry picked from commit 4bc1e10009aa55c16f93c88e238e8fe462dbd65b)
DROOLS-65,BZ917787: fixing conditional to allow cache update altough client is restarted
(cherry picked from commit 133058fd496fe002781ce533145a108520b6933d)

Conflicts:

	drools-core/src/main/java/org/drools/io/impl/ResourceChangeScannerImpl.java