Bug 180645 Support set format for Date/Time type parameter.[0705]
Description: Support set format for Date/Time type parameter. Build number:2.2.0.v200704031345 Steps to reproduce: 1. New a Date report parameter. 2. Click Change... button to set format for it. Expected result: Can set format for Date/Time parameter. Actual result: Change... button is disabled. Error log:N/A
core/org.eclipse.birt.core/src/org/eclipse/birt/core/format/DateFormatter.java
* constuctor method with two parameters, one is String type while the other
	 * is Locale type
	 * 
	 * @param pattern
	 * @param localeLoc
	 */
	public DateFormatter( String pattern, ULocale localeLoc )
	{
		
		if ( localeLoc != null )
			locale = localeLoc;
		applyPattern( pattern );
	}
	/**
	 * @deprecated since 2.1
	 * @return
	 */
	public DateFormatter( String pattern, Locale localeLoc )
	{
		this( pattern, ULocale.forLocale( localeLoc ) );
	}
	/**
	 * get the string pattern
	 * 
	 * @return
	 */
	public String getPattern( )
	{
		return this.formatPattern;
	}