make default zero rule ignore all concepts not in the fac report.
append audittrail instead of replace for default INF rule in bfi report.
fixed duplicate Rules field in components:facts(...) function
fixed failing test
Merge branch 'master' of https://github.com/28msec/secxbrl.info into fix-duplicate-Rules-field
fixed facts-for-report-schema test
Merge pull request #399 from 28msec/fix-duplicate-Rules-field

Fix duplicate rules field