Explicitly log logger initialization error to stderr
Explicitly log logger initialization error to stderr

Summary:
If logger is not initialized correctly, logger initialization error
may go nowhere.

Before this patch error looked like this:

```
Oct 09, 2017 6:04:24 PM com.facebook.buck.log.Logger info
INFO: HangMonitorAutoStart
Process finished with exit code 13
```

After this patch:

```
Oct 09, 2017 6:05:04 PM com.facebook.buck.log.Logger info
INFO: HangMonitorAutoStart
Failed to initialize logger
java.lang.ExceptionInInitializerError
	at com.facebook.buck.cli.bootstrapper.ConsoleHandler.<clinit>(ConsoleHandler.java:25)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at java.lang.Class.newInstance(Class.java:442)
	at java.util.logging.LogManager$5.run(LogManager.java:966)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.util.logging.LogManager.loadLoggerHandlers(LogManager.java:958)
	at java.util.logging.LogManager.initializeGlobalHandlers(LogManager.java:1578)
	at java.util.logging.LogManager.access$1500(LogManager.java:145)
	at java.util.logging.LogManager$RootLogger.accessCheckedHandlers(LogManager.java:1667)
	at java.util.logging.Logger.getHandlers(Logger.java:1777)
	at java.util.logging.Logger.log(Logger.java:735)
	at com.facebook.buck.log.Logger.logAppendableLogRecord(Logger.java:374)
	at com.facebook.buck.log.Logger.debug(Logger.java:183)
	at com.facebook.buck.log.Logger.debug(Logger.java:164)
	at com.facebook.buck.cli.Main.setupLogging(Main.java:497)
	at com.facebook.buck.cli.Main.runMainWithExitCode(Main.java:576)
	at com.facebook.buck.cli.Main.runMainThenExit(Main.java:406)
	at com.facebook.buck.cli.Main.main(Main.java:1802)
Caused by: java.lang.RuntimeException: BUCK_CLASSPATH not set
	at com.facebook.buck.cli.bootstrapper.ClassLoaderBootstrapper.createClassLoader(ClassLoaderBootstrapper.java:69)
	at com.facebook.buck.cli.bootstrapper.ClassLoaderBootstrapper.<clinit>(ClassLoaderBootstrapper.java:42)
	... 21 more
Process finished with exit code 13
```

This patch is developer diagnostics, it should not affect real users.

Test Plan: Executed `Main` from Idea with `BUCK_CLASSPATH` variable unset.

Reviewed By: styurin

fbshipit-source-id: 863ff36

facebook/buck,ilya-klyuchnikov/buck,shybovycha/buck,shs96c/buck,zpao/buck,romanoid/buck,shybovycha/buck,brettwooldridge/buck,kageiit/buck,zpao/buck,shybovycha/buck,SeleniumHQ/buck,romanoid/buck,kageiit/buck,facebook/buck,zpao/buck,romanoid/buck,rmaz/buck,romanoid/buck,kageiit/buck,rmaz/buck,clonetwin26/buck,ilya-klyuchnikov/buck,shs96c/buck,rmaz/buck,romanoid/buck,facebook/buck,rmaz/buck,facebook/buck,brettwooldridge/buck,SeleniumHQ/buck,rmaz/buck,clonetwin26/buck,romanoid/buck,shs96c/buck,LegNeato/buck,brettwooldridge/buck,shs96c/buck,SeleniumHQ/buck,SeleniumHQ/buck,ilya-klyuchnikov/buck,shybovycha/buck,brettwooldridge/buck,nguyentruongtho/buck,Addepar/buck,JoelMarcey/buck,clonetwin26/buck,Addepar/buck,shs96c/buck,LegNeato/buck,shybovycha/buck,shybovycha/buck,SeleniumHQ/buck,LegNeato/buck,JoelMarcey/buck,Addepar/buck,Addepar/buck,nguyentruongtho/buck,LegNeato/buck,zpao/buck,JoelMarcey/buck,clonetwin26/buck,LegNeato/buck,romanoid/buck,ilya-klyuchnikov/buck,Addepar/buck,romanoid/buck,JoelMarcey/buck,zpao/buck,romanoid/buck,nguyentruongtho/buck,rmaz/buck,ilya-klyuchnikov/buck,kageiit/buck,brettwooldridge/buck,brettwooldridge/buck,clonetwin26/buck,shs96c/buck,clonetwin26/buck,ilya-klyuchnikov/buck,rmaz/buck,ilya-klyuchnikov/buck,kageiit/buck,SeleniumHQ/buck,rmaz/buck,LegNeato/buck,SeleniumHQ/buck,romanoid/buck,Addepar/buck,LegNeato/buck,JoelMarcey/buck,LegNeato/buck,kageiit/buck,rmaz/buck,brettwooldridge/buck,nguyentruongtho/buck,shs96c/buck,rmaz/buck,rmaz/buck,SeleniumHQ/buck,ilya-klyuchnikov/buck,SeleniumHQ/buck,zpao/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,clonetwin26/buck,shybovycha/buck,LegNeato/buck,JoelMarcey/buck,clonetwin26/buck,Addepar/buck,JoelMarcey/buck,LegNeato/buck,clonetwin26/buck,romanoid/buck,Addepar/buck,clonetwin26/buck,facebook/buck,shs96c/buck,JoelMarcey/buck,shybovycha/buck,clonetwin26/buck,JoelMarcey/buck,brettwooldridge/buck,Addepar/buck,shs96c/buck,brettwooldridge/buck,shs96c/buck,romanoid/buck,Addepar/buck,SeleniumHQ/buck,shybovycha/buck,rmaz/buck,ilya-klyuchnikov/buck,JoelMarcey/buck,ilya-klyuchnikov/buck,Addepar/buck,SeleniumHQ/buck,ilya-klyuchnikov/buck,brettwooldridge/buck,facebook/buck,shybovycha/buck,facebook/buck,shybovycha/buck,romanoid/buck,brettwooldridge/buck,Addepar/buck,shs96c/buck,zpao/buck,nguyentruongtho/buck,JoelMarcey/buck,Addepar/buck,rmaz/buck,shs96c/buck,brettwooldridge/buck,clonetwin26/buck,SeleniumHQ/buck,kageiit/buck,ilya-klyuchnikov/buck,clonetwin26/buck,brettwooldridge/buck,LegNeato/buck,LegNeato/buck,shybovycha/buck,nguyentruongtho/buck,nguyentruongtho/buck,SeleniumHQ/buck,JoelMarcey/buck,shs96c/buck,shybovycha/buck,LegNeato/buck