fixes36.2 update for posterity

fixes36.2 update for posterity

Change of couple entries which describe fixed bugs to use past tense
instead of present tense.  Fix a typo or two and a couple of instances
of clumsy wording.  Move a dead-fake-hero-on-trap entry from normal
fixes section to exposed-by-git section since it was a post-3.6.1 bug.
Move two VMS entries from exposed-by-git section to interface-specific
section where they were intended.

I didn't make it through the whole file so there may be more room for
improvement.  It's too late for 3.6.2 but the copy of doc/fixes36.2 in
later versions will be 'better'.