POM cleanup: remove useless version
POM format; maven-dependency-plugin workaround for m2e
NXP-10450 - nuxeo-thumbnail dependencyManagement
Don't split jvmargs in multiple lines
NXP-10973 - use org.nuxeo.build:nuxeo-distribution-tools 1.13, org.nuxeo.connect:nuxeo-connect-client 1.4.5
NXP-10805, NXP-10906: upgrade shindig to use guava, get rid of google-collections
NXBT-514 fix sonar report plugin version