CasperSecurity
#### 5.2.2
* 18/10/18
* #109 Remove opencollective dependency.
#### 5.2.1
* Delete *bower.json*.
#### 5.2.0
* 09/10/18
* #63 Allow negative argument for `round`.
* #107 `sqrt` of large number.
#### 5.1.2
* 24/05/18
* #95 Add `browser` field to *package.json*.
* Restore named export to enable `import {Big}`.
#### 5.1.1
* 22/05/18
* #95 Remove named export.
#### 5.1.0
* 22/05/18
* Amend *.mjs* exports.
* Remove extension from `main` field in *package.json*.
#### 5.0.3
* 23/10/17
* #89 Optimisation of internal `round` function.
#### 5.0.2
* 13/10/17
* Update *README.md*.
#### 5.0.1
* 13/10/17
* Correct `Big.version` number.
#### 5.0.0
* 13/10/17
* Return `-0` from `valueOf` for negative zero.
* Refactor the methods which return a string.
* Amend error messaging.
* Update API document and change its colour scheme.
* Add `Big.version`.
* Remove bitcoin address.
#### 4.0.2
* 28/09/17
* Add *big.mjs* for use with Node.js with `--experimental-modules` flag.
#### 4.0.0
* 27/09/17
* Rename `Big.E_POS` to `Big.PE`, `Big.E_NEG` to `Big.NE`.
* Refactor error messaging.
* Throw if `null` is passed to `toFixed` etc.
#### 3.2.0
* 14/09/17 Aid ES6 import.
#### 3.1.3
* Minor documentation updates.
#### 3.1.2
* README typo.
#### 3.1.1
* API documentation update, including FAQ additions.
#### 3.1.0
* Renamed and exposed `TO_EXP_NEG` and `TO_EXP_POS` as `Big.E_NEG` and `Big.E_POS`.
#### 3.0.2
* Remove *.npmignore*, use `files` field in *package.json* instead.
#### 3.0.1
* Added `sub`, `add` and `mul` aliases.
* Clean-up after lint.
#### 3.0.0
* 10/12/14 Added [multiple constructor functionality](http://mikemcl.github.io/big.js/#faq).
* No breaking changes or other additions, but a major code reorganisation, so *v3* seemed appropiate.
#### 2.5.2
* 1/11/14 Added bower.json.
#### 2.5.1
* 8/06/14 Amend README requires.
#### 2.5.0
* 26/01/14 Added `toJSON` method so serialization uses `toString`.
#### 2.4.1
* 17/10/13 Conform signed zero to IEEEE 754 (2008).
#### 2.4.0
* 19/09/13 Throw instances of `Error`.
#### 2.3.0
* 16/09/13 Added `cmp` method.
#### 2.2.0
* 11/07/13 Added 'round up' mode.
#### 2.1.0
* 26/06/13 Allow e.g. `.1` and `2.`.
#### 2.0.0
* 12/05/13 Added `abs` method and replaced `cmp` with `eq`, `gt`, `gte`, `lt`, and `lte` methods.
#### 1.0.1
* Changed default value of MAX_DP to 1E6
#### 1.0.0
* 7/11/2012 Initial release