SQOOP-1223. Enhance the password file capability to enable plugging-in custom loaders.

(Jarek Jarcec Cecho via Hari Shreedharan)
SQOOP-1227. Sqoop fails to compile against commons-io higher then 1.4

(Jarek Jarcec Cecho via Hari Shreedharan)
SQOOP-1224: Enable use of Oracle Wallets with Oracle Manager

(Venkat Ranganathan via Jarek Jarcec Cecho)