The installation/development environment is a bit ad-hoc at the moment. Migrate the build to Maven with Eclipse Tycho, which also allows building features/update sites nicely.
Migrated Isabelle/Eclipse (and Isabelle/Scala submodule) to Maven + Eclipse Tycho. The plug-ins can now be built using mvn clean install (Eclipse m2e also seems to be working)
The installation/development environment is a bit ad-hoc at the moment. Migrate the build to Maven with Eclipse Tycho, which also allows building features/update sites nicely.