Backport complex data type inter-table copy bug from 2.0.6 (#14)

Fix crash during copy of complex data types from one table to another

Avoid object key serialisation edge cases

Backport object key serialisation edge case fixes from 2.0.5

Add cjs option when opening JSDB database to create .cjs files

Refactored last change for clarity and removed log statement

Fix table load crash when data contained multiline string

Reduce package size

ESM version

Attempt to create a query on a non-array object now throws TypeError.

Object keys with non-alphanumeric characters now properly supported.

Query security improvements.

  - Fail faster on disallowed character detection.
  - Fail at function creation instead of code execution on syntax error by using function constructor instead of eval.
  - Add square brackets to disallowed characters. As far as I can see, [esoteric](http://www.businessinfo.co.uk/labs/talk/Nonalpha.pdf) [approaches](http://slides.com/sylvainpv/xchars-js/) to writing non-alphanumeric JavaScript were already being thwarted by disallowing the plus sign, semicolon, etc., but there’s no harm in removing these also as subscript syntax is powerful in JavaScript.
  - Add a few more tests.

Refactor query sanitisation to make it safer and more maintainable.

Also, add tests.

Now sanitising queries to prevent arbitrary code execution via injection attacks.

Improve sanitisation sieve; fix boolean support in queries

  - Make sanitisation regular expression less greedy (the sieve now catches injection attempts it was previously missing).
  - Boolean value support in queries now works properly (was previously being filtered by the sieve).

  - Missing test for boolean values in queries.

Initial release.