Update Maven plugin versions

Update the Maven plugins in project to the latest supported version:
Cargo Tomcat 8.5.12 -> 8.5.14
assembly plugin 2.6 -> 3.0.0
buildnumber plugin 1.2 -> 1.4
cargo plugin 1.6.2 -> 1.6.3
changes plugin 2.9 -> 2.12.1
compiler plugin 3.5.1 -> 3.6.1
dependency plugin 2.10 -> 3.0.0
exec plugin 1.4.0 -> 1.5.0
jar plugin 2.6 -> 3.0.2
javadoc plugin 2.10.3 -> 2.10.4
jrebel plugin 1.1.5 -> 1.1.7
resources plugin 2.6 -> 3.0.2
source plugin 3.0.0 -> 3.0.1
war plugin 2.6 -> 3.0.0
build helper plugin 1.10 -> 3.0.0

Relates to RD-3772