Please review two corrections for java.time

[roger riggs]

Please review for two corrections:

-  The java/time/tck/java/time/TCKLocalTime test failed on a slow machine;
    the test should be more lenient.   The test is not appropriate for 
a conformance test
    and is moved to java/time/test/java/time/TestLocalTime.
- The javadoc for the JapaneseEra.MEIJI era should indicate the start 
date is 1868-01-01
  to be consistent with java.util.Calendar.  Note that java.time does 
not permit dates before Meiji 6
  to be created since the calendar is not clearly defined until then.

Webrev: http://cr.openjdk.java.net/~rriggs/webrev-localtime-now-8023639/

Thanks, Roger