1) Add EpocEngineHelper#hasFeatureVariantKeyword(...) 2) Make sure retrieval of makefile directory and makefile name hadles default ARMV5 case where config is a variant but the FEATUREVARIANT keyword is not specified.

source.sourcegen.jar = src/
output.sourcegen.jar = bin/
bin.includes = plugin.xml,\
               sourcegen.jar,\
               icons/,\
               META-INF/