NPE while starting AdminUI

[Peter Beaman]

Observed while starting the AdminUI with a French locale:

java -cp akiban-persistit-3.2.0.jar com.persistit.ui.AdminUI
Exception in thread "Thread-1" java.lang.NullPointerException
        at java.text.DecimalFormat.applyPattern(Unknown Source)
        at java.text.DecimalFormat.<init>(Unknown Source)
        at com.persistit.ui.AdminUI.setupFrame(AdminUI.java:476)
        at com.persistit.ui.AdminUI.access$100(AdminUI.java:96)
        at com.persistit.ui.AdminUI$2.run(AdminUI.java:228)

The issue is that a properties file that supplies text in the AdminUI is English-only. We need to provide a default versions of AdminUI.properties. More generally, due to resource availability and national language myopia the AdminUI has never been tested in any non-English locale.