Improved tx-time calculation performance by memoizing t-value calculation, and added 'server' or 'client' to title of window.
Improved tx-time calculation performance by memoizing t-value calculation, and added 'server' or 'client' to title of window.

brettdh/libcmm,brettdh/libcmm,brettdh/libcmm,brettdh/libcmm,brettdh/libcmm