Refactor val method in fxQuery

	Add ComboBoxBase instance to the val method of fxQuery. This is
	made to cater setValue method of nodes with an instance of
	ComboBox.

Changes to be commit:

	modified:   src/main/java/javafx/ext/FXQuery.java
Merging Arjay Task with Mine

	Merged val implementation, Text and ComboBoxBase.

Conflicts:
	src/main/java/javafx/ext/FXQuery.java