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.
# use glob syntax.
syntax: glob
bin
runtime
\.DS_Store
connectivity/com.nokia.tcf/os/*
connectivity/com.nokia.tcf/native/TCFNative/*/Release
connectivity/com.nokia.tcf/native/TCFNative/*/Debug