offsetLimit
Supports sets that include a limit and offset.
    set.props.offsetLimit( [offsetProperty][, limitProperty] )
  
  Makes a prop for two ranged properties that specify a range of items
that includes both the offsetProperty and limitProperty.  For example, set like:
{offset: 20, limit: 10} loads 10 items starting at index 20.
new set.Algebra( set.props.offsetLimit("offset","limit") );
  
  Parameters
- offsetProperty 
{String}:The offset property name on sets. Defaults to
"offset"if none is provided. - limitProperty 
{String}:The offset limit name on sets. Defaults to
"limit"if none is provided.