Revert "Email force close when pressing back key after selecting characters"

This reverts commit 0fecd874c8d83e79a83bbd57c536862e57f4cf6c.
Revert "Can not mark the same content of browser page after copy"

This reverts commit e0b275fa74c94e0a46d06db36463be63f790dc31.
Update Japanese translation

Change-Id: I2ff6e932483393ac2c1d3b7384f7b10656778156
Signed-off-by: rdgate <rdgate@gmail.com>