chore(deps): update dependency rollup to ^0.59.0

[renovate]

This Pull Request updates dependency rollup from ^0.58.0 to ^0.59.0

Release Notes

v0.59.0

Compare Source
2018-05-15

• Tree-shake statically analysable dynamic conditionals (#​2167)
• Do not emit empty chunks when code-splitting or empty files when preserving modules (#​2128)
• Support import.meta.url (#​2164)
• Add esm format alias (#​2102)
• Use alphanumeric base64 characters when deconflicting variables (#​2188)
• Improve handling of external modules imported as both default and named imports (#​2136)
• Properly deconflict named imports from other chunks (#​2177)
• Fix an issue with namespaces containing reexports (#​2157)
• Fix an issue with with incorrectly mapped default exports when code-splitting CJS or AMD modules (#​2178)
• Fix an issue with wrong paths of relative external imports (#​2160)
• Fix an issue when using default exports and interop: false (#​2149)
• Fix in issue with invalid syntax in SystemJS output (#​2187)
• Fix an issue when tree-shaking call expressions and reassigned variables (#​2186)
• Fix file paths in source maps (#​2161)
• Fix wrong file name in error message (#​2137)
• Always use npm 5 on CI (#​2185)

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