Update RunMojo to include an @Execute annotation. Allows the use of
`mvn spring-boot:run` without having to compile/package first. Now a
command like `mvn clean spring-boot:run` works.
The phase for @Execute annotation is along the lines of what is used
for the `jetty:run` plugin.
Rework main build POM to be an aggregator pom that does not inherit
from any parent. Introduce new spring-boot-dependencies module to
act as a parent for both spring-boot-starter-parent and
spring-boot-parent.
Biju Kunjummen
Phillip Webb
Daniel L. Buchko
Phil Webb
Phillip Webb
Dave Syer