Bump vuepress from 1.0.0-alpha.30 to 1.0.0-alpha.49

[dependabot-preview[bot]]

Bumps vuepress from 1.0.0-alpha.30 to 1.0.0-alpha.49.

Changelog

*Sourced from [vuepress's changelog](https://github.com/vuejs/vuepress/blob/master/CHANGELOG.md).* > > # [1.0.0-alpha.48](https://github.com/vuejs/vuepress/compare/v1.0.0-alpha.47...v1.0.0-alpha.48) (2019-05-14) > > > ### Bug Fixes > > * **$core:** Failed to load theme when using `layouts/Layout.vue` as entry file (close: [#1563](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1563)) ([#1564](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1564)) ([057d8bf](https://github.com/vuejs/vuepress/commit/057d8bf)) > * **$core:** Search result cannot jump to the correct hash anchor (close: [#1594](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1594)) ([#1599](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1599)) ([e6af68f](https://github.com/vuejs/vuepress/commit/e6af68f)) > * **$core:** Use directory name to compute slug if filename is readme or index (close: [#1443](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1443)) ([#1535](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1535)) ([9efc678](https://github.com/vuejs/vuepress/commit/9efc678)) > * **$core:** webpack externals (ref: [#451](https://github-redirect.dependabot.com/vuejs/vuepress/issues/451)) ([fb324d5](https://github.com/vuejs/vuepress/commit/fb324d5)) > > > ### Features > > * **$core:** Infer page's date via directory name ([#1553](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1553)) ([2c930c9](https://github.com/vuejs/vuepress/commit/2c930c9)) > * **$core:** `info` command ([#1573](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1573)) ([3eeb080](https://github.com/vuejs/vuepress/commit/3eeb080)) > * **$core:** Prevent duplicate route ([#1525](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1525)) ([441f023](https://github.com/vuejs/vuepress/commit/441f023)) > * **$theme-default:** Support external links in sidebar (close: [#764](https://github-redirect.dependabot.com/vuejs/vuepress/issues/764))([#1534](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1534)) ([141bd11](https://github.com/vuejs/vuepress/commit/141bd11)) > > > > > # [1.0.0-alpha.47](https://github.com/vuejs/vuepress/compare/v1.0.0-alpha.46...v1.0.0-alpha.47) (2019-04-06) > > > ### Bug Fixes > > * **$core:** `index.styl` is not injected at the end of the style bundle (close: [#1523](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1523)) ([dabf506](https://github.com/vuejs/vuepress/commit/dabf506)) > * **$core:** `routerBase` will always get '/' (close: [#1503](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1503)) ([9fba549](https://github.com/vuejs/vuepress/commit/9fba549)) > * **$markdown:** Snippets should allow spaces in file path (closes [#1505](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1505)) ([#1517](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1517)) ([5c307c9](https://github.com/vuejs/vuepress/commit/5c307c9)) > > > ### Features > > * **$core:** assert return type for functional plugin ([#1516](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1516)) ([74887c5](https://github.com/vuejs/vuepress/commit/74887c5)) > * **$core:** emit warning if the source directory doesn't exist (close: [#1521](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1521)) ([6da9a5f](https://github.com/vuejs/vuepress/commit/6da9a5f)) > * **$plugin-pwa:** allow using local workbox files (close: [#539](https://github-redirect.dependabot.com/vuejs/vuepress/issues/539)) ([4640614](https://github.com/vuejs/vuepress/commit/4640614)) > > > > > # [1.0.0-alpha.46](https://github.com/vuejs/vuepress/compare/v1.0.0-alpha.45...v1.0.0-alpha.46) (2019-04-01) > > > ### Bug Fixes > > * **$core:** regression of introducing dynamic `routerBase` (close: [#1498](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1498)) ([5e12b49](https://github.com/vuejs/vuepress/commit/5e12b49)) > > > > ... (truncated)

Commits

- [`1947186`](https://github.com/vuejs/vuepress/commit/194718615743f550e33dd965c9bd93cd46089aa6) v1.0.0-alpha.49 - [`7eed1f4`](https://github.com/vuejs/vuepress/commit/7eed1f49f2a30eeade769779082bb977b0e2b0d3) fix($core): cannot load theme with shortcut. - [`bd0bdf9`](https://github.com/vuejs/vuepress/commit/bd0bdf989d20ba570efaae81e9be56d2893c3da3) feat($core): global variable "__VUEPRESS__" to store runtime key infos - [`50f64b4`](https://github.com/vuejs/vuepress/commit/50f64b473f50978f2dc5848a78242d7f3dbb7a00) fix($core): cannot retrieve the correct theme name when them path is a local ... - [`0f4a9d4`](https://github.com/vuejs/vuepress/commit/0f4a9d4ad85db8b3555ef327ebe2a43b2664c8c6) chore($core): cut off process log when resolving unknown commands - [`74d3a5c`](https://github.com/vuejs/vuepress/commit/74d3a5cef0ab66a45cfdc30a7baa907a95b3704a) refactor($theme-default): clean all `.content` class names - [`85ff630`](https://github.com/vuejs/vuepress/commit/85ff63065b9955f3d7e3b1d348c19c792590c366) feat($theme-default): using '.theme-default-content' to replace '.content' in... - [`d84bfe7`](https://github.com/vuejs/vuepress/commit/d84bfe77c2b686ff770e302e77ee41bb3d31682a) Use English in example of global-computed.md ([#1621](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1621)) - [`858062e`](https://github.com/vuejs/vuepress/commit/858062e885d030147ca011c90a0291f16fe800f8) docs: fix link anchor ([#1620](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1620)) - [`bbb153b`](https://github.com/vuejs/vuepress/commit/bbb153bdd5dc35a99f0f2a28fb79873f1b3d509d) docs: update writing-a-plugin.md ([#1628](https://github-redirect.dependabot.com/vuejs/vuepress/issues/1628)) - Additional commits viewable in [compare view](https://github.com/vuejs/vuepress/compare/v1.0.0-alpha.30...v1.0.0-alpha.49)

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Superseded by #74.