Set target version of apache-commons to Java 5
Set target version of apache-commons to Java 5

(cherry picked from commit 7b9b5d430bda5ee0a1948c532e7ddd1374717e8c)

Change-Id: Id3c5ae8d6fbeb8554d0f4f7f743e0aeea0df2bb2

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core