[Ohrrpgce] SVN: teeemcee/9626 Some slices.bas cleanup, more error checking (results in new script erro

[subversion at HamsterRepublic.com]

teeemcee
2017-10-31 04:29:37 -0700 (Tue, 31 Oct 2017)
126
Some slices.bas cleanup, more error checking (results in new script errors) for scroll & clamp, and declare 'slice ptr vector'
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U   wip/menustuf.rbas
U   wip/scriptcommands.bas
U   wip/slices.bas
U   wip/slices.bi