Allow bind marker for collection operation in the query builder

JAVA-196 #fixes
Merge branch '1.0' into 2.0

Conflicts:
	driver-core/src/main/java/com/datastax/driver/core/querybuilder/Assignment.java
	driver-core/src/main/java/com/datastax/driver/core/querybuilder/BindMarker.java
	driver-core/src/main/java/com/datastax/driver/core/querybuilder/BuiltStatement.java
	driver-core/src/main/java/com/datastax/driver/core/querybuilder/QueryBuilder.java
	driver-core/src/main/java/com/datastax/driver/core/querybuilder/Utils.java
Fix changelog