remove prompt for nature, fix #15
mavenize project
Unit tests should run on build
Plugin tests should run on build
Update site and content should be generated with Maven
eclipse:clean eclipse:eclipse should be off. No metadata is generated from Maven.
fix #19
ignore xtext resources, just track xtext ANTLR resources fix #20
Sync Sync Eclipse vs Maven guava version and avoid classpath issues. #19
travis CI #19