KRACOEUS-6956 : repack propdev.impl mailing and some a couple of other classes
KRACOEUS-6956 : repack propdev.impl.print
KRACOEUS-6956 : move MailBy and MailType from propdev mailing to common; Keep KeyPersonInfo with propdev print for now
Merge pull request #162 from yyuan1/0410_repack_propdev_3

0410 repack propdev 3