Doesn't match in checkSimilarity on template name value, just template column key

[johnwards]

We've been scratching our heads why a template value that looks like this:

 {
  name: "Extra Info",
   key: "extraInfo",
 }

Doesn't match when we upload a file with the column header Extra Info

Turns out there are 2 issues.

1. the stringsSimilarity code doesn't like camelCase strings, only snake_case
2. checkSimilarity only takes the templateColumKey, not the templateColumnName value.

Have I misunderstood how this should work? I'm happy to submit a patch if you want the 2 issues fixed.

To get around this we've had to add suggested_mappings: ["Extra Info"] to our template.