lookahead collator: read allowed ancestry len from relay client (#1180)
* Read allowed ancestry len from active config
* extract load_abridged_host_configuration
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Co-authored-by: 
Javier Viola <javier@parity.io>
parent
bd0678a7
* Read allowed ancestry len from active config
* extract load_abridged_host_configuration
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Co-authored-by: Javier Viola <javier@parity.io>