fixed default zeroes rule: added ratios and validation statistics to instant concepts
exclude all abstract concepts from default zeroes result
fixed expected test results
made "fac:ReturnOnEquity", "fac:ReturnOnAssets" and "fac:SustainableGrowthRate" duration facts
made "fac:NotApplicableValidations", "fac:FailedValidations", "fac:PassedValidations" duration facts
Merge pull request #364 from 28msec/fix-facs-default-zeroes

fixed default zeroes rule