Fix local build of onboarding-fe

dox-sequence-diagram-ui/package.json:
- upgrades webpack-cli to 3.3.12, the actual version 2.0.14 is not
compatible or recommended with the webpack version.

openecomp-ui/package.json:
- upgrades webpack-cli to 3.3.12, the actual version 2.0.14 is not
compatible or recommended with the webpack version.
- upgrades babel-core from 6.24.0 to 6.26.0.

Code and config fixes:
- fixes i18n openecomp-ui/src/nfvo-utils/i18n/i18n.js. The previous code
was calling an non-existent attribute of the intl-format-cache.
- fixes dox-sequence-diagram-ui path in openecomp-ui/webpack.config.js.
The previous path configuration was causing compilation problems in the
openecomp-ui (folder not found problem).

Updates README.md with used procedure to run onboarding-fe.

Change-Id: I28f7b78a1f30b5f904b3f7214f72e9741253622d
Issue-ID: SDC-3661
Signed-off-by: André Schmid <andre.schmid@est.tech>

2 files changed, 3 insertions, 2 deletions

diff --git a/dox-sequence-diagram-ui/.gitignore b/dox-sequence-diagram-ui/.gitignore
index 3fb151de68..c0bda2c47a 100644
--- a/dox-sequence-diagram-ui/.gitignore
+++ b/dox-sequence-diagram-ui/.gitignore
@@ -5,4 +5,5 @@ dist
 node_modules
 .npmrc
 .history
-yarn-error.log
\ No newline at end of file
+yarn-error.log
+package-lock.json
\ No newline at end of file
diff --git a/dox-sequence-diagram-ui/package.json b/dox-sequence-diagram-ui/package.json
index f2884eb217..dbac50aaca 100644
--- a/dox-sequence-diagram-ui/package.json
+++ b/dox-sequence-diagram-ui/package.json
@@ -50,7 +50,7 @@
         "svg-sprite-loader": "3.7.3",
         "url-loader": "^1.0.1",
         "webpack": "^4.5.0",
-        "webpack-cli": "^2.0.14",
+        "webpack-cli": "^3.3.12",
         "webpack-dev-server": "^3.1.2"
     },
     "engines": {