JBIDE-14925: Use download-maven-plugin to fix OOM
JBIDE-15208 Struts related exceptions

Removed obsolete references to struts.
JBIDE-3861 Add JUnit tests for org.jboss.tools.seam.ui.search package
JBIDE-12645 Weld extensions: built in contexts

Implemented built-in context beans for injections.