[maven-scm] copy for tag maven-clover-plugin-2.3

pom.xml

src/it/contexts/goals.txt

src/it/contexts/pom.xml

...g/apache/maven/plugin/clover/samples/contexts/Simple.java

src/it/contexts/src/test/verifier/verifications.xml

src/it/multiproject/goals.txt

src/it/simple/goals.txt

src/site/apt/examples/contexts.apt

src/site/apt/examples/multiproject.apt

src/site/apt/examples/simple.apt

src/site/apt/index.apt

src/site/apt/usage.apt

src/site/fml/faq.fml

src/site/site.xml