Fixed NullPointerException with OpenJDK.
Update build instructions in README
Merge branch 'pr-1' of github.com:vakuum/gosu-lang into vakuum-pr-1
Minor

add a null check.
Merge branch 'vakuum-pr-1'
Gosu should honor @SimpleAnnotationProcessing for field properties
Merge branch 'idubrov/simple-field-properties'
Deadlock stemming from shared GosuProgram creation
Merge branch 'fixDeadlock'
Merge branch 'master' into spec