Fix "unchecked cast" warning
BUGFIX: ConcurrentModificationException
Library upgrades:
1) HTTP Client upgraded from 4.2.3 --> 4.2.5
2) Jackson JSON Processor upgraded from 2.1.4 --> 2.2.0
3) SwingX upgraded from 1.6.4 --> 1.6.5-1
Added ability to save JSON beans to user-selected files.