[maven-release-plugin] copy for tag camel-2.18.0

[maven-release-plugin] copy for tag camel-2.16.4

[maven-release-plugin] copy for tag camel-2.17.3

[maven-release-plugin] copy for tag camel-2.17.2

[maven-release-plugin] copy for tag camel-2.17.1

[maven-release-plugin] copy for tag camel-2.16.3

[maven-release-plugin] copy for tag camel-2.15.6

[maven-release-plugin] copy for tag camel-2.17.0

[maven-release-plugin] copy for tag camel-2.16.2

[maven-release-plugin] copy for tag camel-2.15.5