[pom] UPdated nexus-staging-maven-plugin to 1.6.6
[pom] UPdated nexus-staging-maven-plugin to 1.6.6

revelc/formatter-maven-plugin,ctubbsii/formatter-maven-plugin,hazendaz/formatter-maven-plugin,hazendaz/formatter-maven-plugin,revelc/formatter-maven-plugin,ctubbsii/formatter-maven-plugin,revelc/formatter-maven-plugin,ctubbsii/formatter-maven-plugin,revelc/formatter-maven-plugin,ctubbsii/formatter-maven-plugin,hazendaz/formatter-maven-plugin,hazendaz/formatter-maven-plugin