Modified for making Download Manager working again for client running JAVA 7 U45.

Signed-off-by: unknown <panq@NCI-01874582.nci.nih.gov>
Change the version number from 5.2.0 to 5.2.1.

Signed-off-by: unknown <panq@NCI-01874582.nci.nih.gov>
Move properties for new jar manifest secure attributes to project.properties from install.properties.
Modified for unsigning third part jars before signing it with NBIA certificate.
Merge tag 'NBIA-MASTER-5_2_1-20131120-1' into TCIA-5_2

CMDLine and GUI Installer Ready for Release 5.2.1