[ocl25] Use latex/textile folders for all related files
[unrelated] Fix warnings
[unrelated] Convert line delimiters to Unix
[unrelated] Factor out Classpath protocol support
[410265] Migrate Xtext2LPG from Acceleo to Java/Xtend
[410265] Support output validation
[410265] Move org.eclipse.ocl.examples.build.acceleo to archive