acorn parser: adding acorn lib
acorn parser: adding integration into lively
- basic access via Global.acorn
- helper functions for movement/selection of/with AST nodes for codeeditor
- scope analysis
acorn parser: cleanup
codeeditor: adding document change hook and connecting it to scope analyzer
acorn: adding tests to default suite
ide: fixing add module command
Merge branch 'acorn-parser-integration'