#2 package name changes for Xtext 1.0.1 in ContentAssistProces

[Bernhard Merkle]

in ContentAssistProcessorTestBuilder.java

i had to remove the "core" package in the following two imports (seem to be moved in the xtext.ui plugin)

import org.eclipse.xtext.ui.editor.contentassist.ConfigurableCompletionProposal;
import org.eclipse.xtext.ui.editor.contentassist.ContentAssistContext;

kind regards,
Bernhard.