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[dfabulich]

Fixes iftechfoundation/ifdb-suggestion-tracker#406

[salty-horse]

In the other commits, I enabled the use of bind parameters instead of calling an escape function. It will be cumbersome to switch to it without committing the other stuff, so can be done later.

In the closed #271 I also wrote a better (I think) sanitation function for match expressions: removeSqlMatchChars. I don't know if you want to use it. Without it, users can make more flexible matches with special characters, but it might have surprising behaviors since it's not documented. (It's not great, since it strips things like -.)