Please change the following three strings in langconfig for Japanese notation.

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String identifier:
strftimerelativetoday

Component:
core_langconfig

Version:
5.0

Original:
Today, %d %B

Japanese translation:
本日 (%m/%a)

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String identifier:
strftimerelativetomorrow

Component:
core_langconfig

Version:
5.0

Original:
Tomorrow, %d %B

Japanese translation:
明日 (%m/%a)

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String identifier:
strftimerelativeyesterday 

Component:
core_langconfig

Version:
5.0

Original:
Yesterday, %d %B

Japanese translation:
昨日 (%m/%a)

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