[KARAF-851] Add Maven deploy and gpg plugins in the pluginsManagement.
[KARAF-851] Add Maven deploy and gpg plugins in the pluginsManagement.

git-svn-id: 71d8a689455c5fbb0f077bc40adcfc391e14cb9d@1165585 13f79535-47bb-0310-9956-ffa450edef68

grgrzybek/karaf,grgrzybek/karaf,grgrzybek/karaf