[Ohrrpgce] SVN: teeemcee/7702 Fix long existing sprite leak, happening when an enemy is spawned into a

[subversion at HamsterRepublic.com]

teeemcee
2016-02-01 04:35:03 -0800 (Mon, 01 Feb 2016)
306
Fix long existing sprite leak, happening when an enemy is spawned into a previously used slot

There's a commend in check_death:
 'Full cleanup of bslot() records belongs in loadfoe

Found easily with valgrind, because if the refcount of a Frame isn't
zero it isn't freed, and it shows up as leaked memory.
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U   wip/bmodsubs.bas