migrated to xtext 2.4.1 release
fix error markers for features
fix feature editor icon
Fix type inference errors in tables with single null value. Fixes #74
Fix type inference for table with null and primitive values. Fixes #73
clean up
fix examples
update maven plugin to support attaching the debug information
new jnario maven archetype
set maven xtend dependency to 2.4.1
fix preference access
better debug info
clean up
add deploy info
add archetype plugin to release script
regenerate doc