misc small changes to run with newer tcl versions

dockes dockes 2011-12-07

changed samples/mysqldb.tcl
changed samples/origins.tcl
changed samples/wines.tcl
changed sqlscreens.tcl
changed tkAppInit.c
samples/mysqldb.tcl Diff Switch to side-by-side view
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samples/origins.tcl Diff Switch to side-by-side view
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samples/wines.tcl Diff Switch to side-by-side view
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sqlscreens.tcl Diff Switch to side-by-side view
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tkAppInit.c Diff Switch to side-by-side view
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