added checkpoint info to serverStatus #1076
added ft.checkpoint.lastComplete.time to serverStatus #1076
added scaling to some variables #1076
added more info about logger #1076
added serialization/compression timing info to serverStatus #1076
Merge pull request #1090 from Tokutek/serverstatus-checkpoint

added checkpoint info to serverStatus #1076
Merge branch 'bugfixes/tokumx-1.4' into releases/tokumx-1.4