Added jdk level for idea project generation
Added jdk level for idea project generation

jianglili007/greenmail,marcelmay/greenmail,chriswhite199/greenmail,chriswhite199/greenmail,buildscientist/greenmail,rucek/greenmail,Chessray/greenmail,Chessray/greenmail,chriswhite199/greenmail,rucek/greenmail,marcelmay/greenmail,rucek/greenmail,buildscientist/greenmail,Chessray/greenmail,jianglili007/greenmail,buildscientist/greenmail,greenmail-mail-test/greenmail,chriswhite199/greenmail,rucek/greenmail,buildscientist/greenmail,jianglili007/greenmail,greenmail-mail-test/greenmail,marcelmay/greenmail,marcelmay/greenmail,jianglili007/greenmail,chriswhite199/greenmail,greenmail-mail-test/greenmail,Chessray/greenmail,buildscientist/greenmail,marcelmay/greenmail