This Pull Request updates dependency rollup from v0.58.2 to v0.59.1
Release Notes
### [`v0.59.1`](https://github.com/rollup/rollup/blob/master/CHANGELOG.md#0591)
[Compare Source](https://github.com/rollup/rollup/compare/v0.59.0...v0.59.1)
*2018-05-16*
* Fix infinite recursion when determining literal values of circular structures ([#2193](`https://github.com/rollup/rollup/pull/2193`))
* Fix invalid code when simplifying expressions without spaces ([#2194](`https://github.com/rollup/rollup/pull/2194`))
---
### [`v0.59.0`](https://github.com/rollup/rollup/blob/master/CHANGELOG.md#0590)
[Compare Source](https://github.com/rollup/rollup/compare/v0.58.2...v0.59.0)
*2018-05-15*
* Tree-shake statically analysable dynamic conditionals ([#2167](`https://github.com/rollup/rollup/pull/2167`))
* Do not emit empty chunks when code-splitting or empty files when preserving modules ([#2128](`https://github.com/rollup/rollup/pull/2128`))
* Support `import.meta.url` ([#2164](`https://github.com/rollup/rollup/pull/2164`))
* Add `esm` format alias ([#2102](`https://github.com/rollup/rollup/pull/2102`))
* Use alphanumeric base64 characters when deconflicting variables ([#2188](`https://github.com/rollup/rollup/pull/2188`))
* Improve handling of external modules imported as both default and named imports ([#2136](`https://github.com/rollup/rollup/pull/2136`))
* Properly deconflict named imports from other chunks ([#2177](`https://github.com/rollup/rollup/pull/2177`))
* Fix an issue with namespaces containing reexports ([#2157](`https://github.com/rollup/rollup/pull/2157`))
* Fix an issue with with incorrectly mapped default exports when code-splitting CJS or AMD modules ([#2178](`https://github.com/rollup/rollup/pull/2178`))
* Fix an issue with wrong paths of relative external imports ([#2160](`https://github.com/rollup/rollup/pull/2160`))
* Fix an issue when using default exports and `interop: false` ([#2149](`https://github.com/rollup/rollup/pull/2149`))
* Fix in issue with invalid syntax in SystemJS output ([#2187](`https://github.com/rollup/rollup/pull/2187`))
* Fix an issue when tree-shaking call expressions and reassigned variables ([#2186](`https://github.com/rollup/rollup/pull/2186`))
* Fix file paths in source maps ([#2161](`https://github.com/rollup/rollup/pull/2161`))
* Fix wrong file name in error message ([#2137](`https://github.com/rollup/rollup/pull/2137`))
* Always use npm 5 on CI ([#2185](`https://github.com/rollup/rollup/pull/2185`))
---
This Pull Request updates dependency rollup from
v0.58.2tov0.59.1Release Notes
### [`v0.59.1`](https://github.com/rollup/rollup/blob/master/CHANGELOG.md#0591) [Compare Source](https://github.com/rollup/rollup/compare/v0.59.0...v0.59.1) *2018-05-16* * Fix infinite recursion when determining literal values of circular structures ([#2193](`https://github.com/rollup/rollup/pull/2193`)) * Fix invalid code when simplifying expressions without spaces ([#2194](`https://github.com/rollup/rollup/pull/2194`)) --- ### [`v0.59.0`](https://github.com/rollup/rollup/blob/master/CHANGELOG.md#0590) [Compare Source](https://github.com/rollup/rollup/compare/v0.58.2...v0.59.0) *2018-05-15* * Tree-shake statically analysable dynamic conditionals ([#2167](`https://github.com/rollup/rollup/pull/2167`)) * Do not emit empty chunks when code-splitting or empty files when preserving modules ([#2128](`https://github.com/rollup/rollup/pull/2128`)) * Support `import.meta.url` ([#2164](`https://github.com/rollup/rollup/pull/2164`)) * Add `esm` format alias ([#2102](`https://github.com/rollup/rollup/pull/2102`)) * Use alphanumeric base64 characters when deconflicting variables ([#2188](`https://github.com/rollup/rollup/pull/2188`)) * Improve handling of external modules imported as both default and named imports ([#2136](`https://github.com/rollup/rollup/pull/2136`)) * Properly deconflict named imports from other chunks ([#2177](`https://github.com/rollup/rollup/pull/2177`)) * Fix an issue with namespaces containing reexports ([#2157](`https://github.com/rollup/rollup/pull/2157`)) * Fix an issue with with incorrectly mapped default exports when code-splitting CJS or AMD modules ([#2178](`https://github.com/rollup/rollup/pull/2178`)) * Fix an issue with wrong paths of relative external imports ([#2160](`https://github.com/rollup/rollup/pull/2160`)) * Fix an issue when using default exports and `interop: false` ([#2149](`https://github.com/rollup/rollup/pull/2149`)) * Fix in issue with invalid syntax in SystemJS output ([#2187](`https://github.com/rollup/rollup/pull/2187`)) * Fix an issue when tree-shaking call expressions and reassigned variables ([#2186](`https://github.com/rollup/rollup/pull/2186`)) * Fix file paths in source maps ([#2161](`https://github.com/rollup/rollup/pull/2161`)) * Fix wrong file name in error message ([#2137](`https://github.com/rollup/rollup/pull/2137`)) * Always use npm 5 on CI ([#2185](`https://github.com/rollup/rollup/pull/2185`)) ---This PR has been generated by Renovate Bot.