remove maven related warnings
Revert "remove warnings from build.properties"

This reverts commit 7e285f5a724159cd6de38cdd9aef24abb5344ddc.
remove plugin.xml from build.properties
fix maven import of org.jboss.tools.hibernate.jpt.core.test
Revert "remove dead code warning"

This reverts commit 66398574cc3032a3f02745b857e49ad84f241f8f.
JBIDE-10219 Migrate org.eclipse.core.runtime.contentTypes extension points to org.eclipse.core.contenttype.contentTypes
remove unnecessary .settings/ folders
remove .cvsignore files
replace bin/ by target/classes/
replace build/eclipse/ by target/classes/
remove src/ from src.includes in build.properties
remove build.properties from src.includes in build.properties