Bump mathjs from 4.2.2 to 5.8.0

[dependabot-preview]

Bumps mathjs from 4.2.2 to 5.8.0.

Changelog

Sourced from mathjs's changelog.

2018-03-20, version 5.8.0

• Implemented new function apply. Thanks @​bnlcas.
• Implemented passing an optional dimension argument to std and var.
  Thanks @​bnlcas.

2019-03-10, version 5.7.0

• Implemented support for pow() in derivative. Thanks @​sam-19.
• Gracefully handle round-off errors in fix, ceil, floor, and range
  (Fixes #1429, see also #1434, #1432). Thanks @​ericman314.

2019-03-02, version 5.6.0

• Upgrade decimal.js to v10.1.1 (#1421).
• Fixed #1418: missing whitespace when stringifying an expression
  containing "not".

2019-02-20, version 5.5.0

• Fixed #1401: methods map and forEach of SparseMatrix not working
  correctly when indexes are unordered.
• Fixed #1404: inconsistent rounding of negative numbers.
• Upgrade tiny-emitter to v2.1.0 (#1397).

2019-01-25, version 5.4.2

• Fixed math.format not working for BigNumbers with a precision above
  1025 digits (see #1385). Thanks @​ericman314.
• Fixed incorrect LaTeX output of RelationalNode. Thanks @​rianmcguire.
• Fixed a bug the methods map, forEach, traverse, and transform
  of FunctionNode.

2019-01-10, version 5.4.1

• Fix #1378: negative bignumbers not formatted correctly.
• Upgrade fraction.js to version 4.0.12 (#1369).

2018-12-09, version 5.4.0

• Extended sum.js to accept a dimension input to calculate the sum over a
  specific axis. Thanks @​bnlcas.
• Fix #1328: objects can't be written multi-line. Thanks @​GHolk.
• Remove side effects caused by Unit.format and Unit.toString,

... (truncated)

Commits

• d2a99f9 Publish v5.8.0
• bfa7c9e Update history
• 0db4230 Extend std var for variable dimensions request 999 (#1444)
• 81b2e1a Update uglify-js to the latest version 🚀 (#1447)
• d3c470e Update babel7 to the latest version 🚀 (#1446)
• 2f783bd Update history
• 128ed3c Create apply utility request 1359 (#1411)
• be30c9e Update uglify-js to the latest version 🚀 (#1439)
• 0647fc1 Publish v5.7.0
• f7202e4 Update history
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #134.