WIP: new query/index implementation
integration with the map implementation
BigInteger and BigDecimal support
Merge remote-tracking branch 'origin/3.0' into 3.0

Conflicts:
	hazelcast/src/main/java/com/hazelcast/map/MapMigrationOperation.java
	hazelcast/src/main/java/com/hazelcast/map/MapService.java
	hazelcast/src/main/java/com/hazelcast/map/QueryOperation.java
	hazelcast/src/main/java/com/hazelcast/map/QueryPartitionOperation.java
	hazelcast/src/main/java/com/hazelcast/query/impl/UnsortedIndexStore.java
cleanup