Adding defensive checks.
more informative logging
rethrowing the exception
Adding more defensive checks.
addressing review comments.
read/delete cluster/feed/process in AuthorizationTest
warnings fixed
Merge pull request #103 from rostafiychuk/master

read/delete cluster/feed/process in AuthorizationTest
Merge pull request #109 from raghavgautam/master

Logging changes and adding fixing ELTest
Merge pull request #111 from rostafiychuk/warnings

warnings fixed
OSUtil class created, main paths are added
(cherry picked from commit 7e9d028)
OSUtil class created, main paths are added
(cherry picked from commit c37df03)
OSUtil class created, main paths are added
(cherry picked from commit 9d60ef7)
"src/..." paths related to OSUtil
Merge pull request #112 from rostafiychuk/winsupport

OSUtil and related refactoring
tests ordered; update, resume-instance-level cases added
Merge pull request #106 from pisaychuk/master

New Test Cases
adding apache header to OSUtil.java and merging