add 8.2.6 version history item and clarify use of foward slash character
as correct syntax for both Window and Linux directory specification in
submit command transfer_input_files #4747
improve 8.2.5 release note
Merge branch 'V8_2_6-branch' into V8_2-branch
Merge branch 'V8_2-branch' into V8_3_2-branch
Merge branch 'V8_3_2-branch'