bugFix incorrectly load BED, not GFF

The extension for the files that the FileSelection object displayed was set to "bed", likely a copy-paste error from SortBEDWindow. This has been fixed to load GFF files.

Author: owlang

src/window_interface/Coordinate_Manipulation/GFF_Manipulation/SortGFFWindow.java

@@ -279,7 +279,7 @@ public void itemStateChanged(ItemEvent e) {
 		sl_contentPane.putConstraint(SpringLayout.NORTH, btnLoadGFFFile, 10, SpringLayout.NORTH, contentPane);
 		btnLoadGFFFile.addActionListener(new ActionListener() {
             public void actionPerformed(ActionEvent e) {
-				File newBEDFile = FileSelection.getFile(fc,"bed");
+				File newBEDFile = FileSelection.getFile(fc,"gff");
 				if(newBEDFile != null) {
 					GFF_File = newBEDFile;
 					lblGFFFile.setText(GFF_File.getName());
@@ -385,4 +385,4 @@ else if(currentSize != tempsize) {
 		if(consistentSize) { return true; }
 		else { return false; }
 	}
-}
+}