PHOENIX-1537 Set reuseForks to false for integration tests

Conflicts:
	phoenix-core/src/it/java/org/apache/phoenix/end2end/index/DropViewIT.java

Conflicts:
	phoenix-core/src/it/java/org/apache/phoenix/end2end/BaseQueryIT.java
	phoenix-core/src/it/java/org/apache/phoenix/end2end/QueryIT.java
	phoenix-core/src/it/java/org/apache/phoenix/end2end/index/LocalIndexIT.java
	phoenix-core/src/it/java/org/apache/phoenix/end2end/index/MutableIndexIT.java