Fixes #897 with amendment
-# General
-
workspace.xml
junitvmwatcher*.properties
build.properties
# generated java classes and java source files
-# custom artifacts that can't be generated from the models you
-# should add them manually
-# see http://confluence.jetbrains.com/display/MPSD25/HowTo+--+MPS+and+Git
-# for further reference
+# manually add any custom artifacts that can't be generated from the models
+# http://confluence.jetbrains.com/display/MPSD25/HowTo+--+MPS+and+Git
classes_gen
source_gen
source_gen.caches