[t:5067] Merge #5067 to main.  New GC algorithm that calculates "live_list_reverse" on the fly when needed

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close[t:5100] close[t:4930] the api for closing a ft has been simplified for normal use. for recovery, there is a new function that internally asserts the underlying ft is close and passes a valid lsn to the cachefile for closing


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close[t:5109] address some comments from code review concerning the naming of functions that remove an ft from memory vs removing a ft from the filesystem.


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The previous fix added a new race condition; When the new race hits, we leak lock trees.

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with -ipo-c into one .o, and rearchiving.  closes #5094.


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[t:4963] fix another issue with reference counting in lock trees. we should not store a lock tree object in the manager if its reference count is zero, too many cases to deal with toku_ltm_get_lt. instead, atomically check if a lt's ref is 1 and remove it from the manager, so no race can occur between removing and adding another reference.


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 - make the bool in logformat an enum: "doesn't care about logging begin",
   "should log begin if it hasn't been logged yet", and "should assert
   that the begin was already logged"
 - make logging client code not try to log commits, prepares, or aborts
   for read-only txns
 - added test, fixed another test


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[t:4938] stress test for dictionary open/close with referencing txn + checkpoint, renamed to something a stress regex can understand

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[t:4871] switch ctestconfig to use lex1's cdash server instead of munchkin (only works if you're running in tokulex)

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