Bug 55571 .metadata folder created under install dir
In I20040322 the .metadata folder is being created in the install dir.
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/IDEApplication.java
}
	}
	/**
	 * Return true if a valid workspace path has been set and false otherwise.
	 * Prompt for and set the path if possible and required.
	 * 
	 * @return true if a valid instance location has been set and false
	 *         otherwise
	 */
	private boolean checkInstanceLocation(Shell shell) {
		
		Location instanceLoc = Platform.getInstanceLocation();
		if (instanceLoc == null) {
			MessageDialog
					.openError(
							shell,
							IDEWorkbenchMessages
									.getString("IDEApplication.workspaceMandatoryTitle"), 
							IDEWorkbenchMessages
									.getString("IDEApplication.workspaceMandatoryMessage")); 
			return false;
		}
		
		if (instanceLoc.isSet()) {
			
			
			if (!checkValidWorkspace(shell, instanceLoc.getURL()))
				return false;