[ZEPPELIN-3848] zeppelin-web dev mode does not work ### What is this PR for? zeppelin-web development mode is broken. `npm run dev` throws error
``` Error: Cannot find module 'webpack/bin/config-yargs' ``` This PR fixes error by upgrading webpack from version 1.x to 4.x ### What type of PR is it? Bug Fix ### What is the Jira issue? https://issues.apache.org/jira/browse/ZEPPELIN-3848 ### How should this be tested? check if `npm run dev` works under zeppelin-web dir. And able to browse localhost:9000 ### Questions: * Does the licenses files need update? no * Is there breaking changes for older versions? no * Does this needs documentation? no Author: Lee moon soo <m...@apache.org> Closes #3217 from Leemoonsoo/upgrade_webpack and squashes the following commits: 5b9bc0491 [Lee moon soo] http->https ff7e10f21 [Lee moon soo] update package-lock.json with sha512 instead of sha1 1fc1fff6e [Lee moon soo] update webpack config and package-lock b66768eb3 [Lee moon soo] upgrade webpack version Project: http://git-wip-us.apache.org/repos/asf/zeppelin/repo Commit: http://git-wip-us.apache.org/repos/asf/zeppelin/commit/d1606c24 Tree: http://git-wip-us.apache.org/repos/asf/zeppelin/tree/d1606c24 Diff: http://git-wip-us.apache.org/repos/asf/zeppelin/diff/d1606c24 Branch: refs/heads/master Commit: d1606c248d4398d929683de284c62d630d19806c Parents: 31ceca7 Author: Lee moon soo <m...@apache.org> Authored: Tue Nov 6 14:51:47 2018 -0800 Committer: Lee moon soo <m...@apache.org> Committed: Wed Nov 7 14:26:45 2018 -0800 ---------------------------------------------------------------------- zeppelin-web/package-lock.json | 8738 +++++++++++++++++++++-------------- zeppelin-web/package.json | 19 +- zeppelin-web/webpack.config.js | 91 +- 3 files changed, 5376 insertions(+), 3472 deletions(-) ----------------------------------------------------------------------