1) changed maven-surefire plugin to the custom one (2.12.3-GD-02)
2) added repo definitions to fetch the custom surefire
3) added option -Dsecurity-deny-system-exit=true to forbid System.exit() in tests.
added dependency of maven-clover2-plugin.
Added explict dependency to "findbugs-maven-plugin" to avoid warnings from Maven.
Merge remote branch 'origin/trunk-gd' into fb-YAHOO-299-trunk-gd