HPCC-8197 Configmgr - Rename 'Swap Master' to 'Replace Master'

Signed-off-by: Gleb Aronsky <gleb.aronsky@lexisnexis.com>
Merge pull request #3853 from garonsky/issue-8197_Rename_swap_master_to_replace_master

HPCC-8197 Configmgr - Rename 'Swap Master' to 'Replace Master'

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>