Fixed: Various bugs in Helloworld CDI SE Example

[mkarg]

This PR fixes various bugs of the Helloworld CDI SE example.

1. README.MD - Sample link misses mandatory parameter
2. pom.xml - Surplus prefix for main class
3. App.java - Surplus base path for root url

[mkarg]

@eclipsewebmaster @eclipse-ece-validation The Eclipse FDN / ECA validation fails to connect its internal database. Can you please fix this? Thanks! :-)

[senivam]

it's because commit's header is validated vs author's email ([email protected]) and that email does not have ECA signed

commit 685f381415329fad95504b9f20858a95d02b3d15
Author:     Markus KARG <[email protected]>
AuthorDate: Mon Jul 22 08:47:03 2019 +0200
Commit:     Markus KARG <[email protected]>
CommitDate: Mon Jul 22 12:37:29 2019 +0200

[mkarg]

@senivam Thank you for inspecting this, I will fix the author line ASAP. Anyways, this does not explain why the ECA check fails to connect to Eclipse Foundation's MariaDB...

[mkarg]

@senivam Fixed the ECA check, but Travis failed with connect problems under your user while the same build works with my user. Can you please press "Retry" in Travis CI for the failing build so this PR passes the final check? Thanks! :-)

[mkarg]

@senivam Thanks! :-)

[mkarg]

All checks passed. Requesting merge. :-)

[senivam]

@mkarg you are welcome :) it's obvious that you would like to have it merged, or why to submit PR at all? :) And for sure after review there is a possibility that it will be merged though...

[mkarg]

@senivam Wasn't intended to stress you; just wanted to inform that the troubles we had with this PR are finally passed, nothing more. :-)

[mkarg]

@senivam Changed as requested. Travis succeeded in my fork, but failed in origin. I think it will pass if you restart the two failing jobs. It seems Travis is rathe runstable these days.

[senivam]

LGTM

[mkarg]

@jansupol @arjantijms Requesting 2nd review. 🙏

[mkarg]

@arjantijms Thanks a lot! 🎉