Clean up some SonarQube warnings (trailing whitespace, etc).

Clean up some SonarQube warnings (trailing whitespace, etc).

Clean up trailing whitespace and removed Windows line endings from
most text files to address SonarQube warnings.  As a side effect of
this clean-up, several files that should not have been executable had
their executable permission bit removed.

Change-Id: Ie388df6e383219cdebfb56ba8fa86cacf2ca3e46
Signed-off-by: Ossama Othman <ossama.othman@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/1980
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-by: Erich Keane <erich.keane@intel.com>