Changelog:
===========
* move internal tests for 'util._Random' class into 'devel/test_random.py'
* add debug-mode introspection and tests for 'decodetree' structure
* fix 'util.pprint()' for very narrow output widths
* substantially simplify 'util.ba2int()' and 'util.int2ba()'
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <khem.raj@oss.qualcomm.com>
