Code style nit
Revert back to longs for date in the query builder

JAVA-313 #fixes
Merge branch '1.0' into 2.0

Conflicts:
	driver-core/src/main/java/com/datastax/driver/core/querybuilder/Utils.java
	driver-core/src/test/java/com/datastax/driver/core/querybuilder/QueryBuilderExecutionTest.java