Maven plugin warning messages are too verbose

[vaadin-bot]

Originally by @mstahv

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Many projects spits lots of nasty looking warnings that are obsolete for end users and which look like a bug for end users. These warning should

• not be reported by default
• not be repeated

An example output of a trivial widgetset compilation:

Failed to retrieve com.vaadin:vaadin-client based on project POM
Using com.vaadin:vaadin-client version 7.5.6
Failed to retrieve com.vaadin:vaadin-client-compiler based on project POM
Using com.vaadin:vaadin-client-compiler version 7.5.6
Failed to retrieve com.vaadin:vaadin-client based on project POM
Using com.vaadin:vaadin-client version 7.5.6
Failed to retrieve com.vaadin:vaadin-client based on project POM
Using com.vaadin:vaadin-client version 7.5.6
Failed to retrieve com.vaadin:vaadin-client based on project POM
Using com.vaadin:vaadin-client version 7.5.6
Failed to retrieve com.vaadin:vaadin-client based on project POM
Using com.vaadin:vaadin-client version 7.5.6
Failed to retrieve com.vaadin:vaadin-client based on project POM
Using com.vaadin:vaadin-client version 7.5.6
Failed to retrieve com.vaadin:vaadin-client based on project POM
Using com.vaadin:vaadin-client version 7.5.6
Failed to retrieve com.vaadin:vaadin-client based on project POM
Using com.vaadin:vaadin-client version 7.5.6

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Imported from https://dev.vaadin.com/ issue #19012

[vaadin-bot]

Originally by @tsuoanttila

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Kind of a duplicate of #14735

[vaadin-bot]

Originally by @hesara

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These have been addressed in the appwidgetset feature branch. If there are still specific problems after taking that into wide use, please create separate tickets on that.