Eliminated printStackTrace() calls

Eliminated printStackTrace() calls

Eliminated calls to printStackTrace() on Throwable as they go to stdout
and are not handled by logger.
Occurences has been replaced by calls to logger or modifications to
nearby logger calls (Throwable passed as last parameter).

Occurences in unit test classes left without modification.

Change-Id: I6a771d60a3ea69ceecc29bb21358e565aa5ce101
Issue-ID: LOG-631
Signed-off-by: Witold Ficio Kopel <w.kopel@samsung.com>