Added
//https://gist.github.com/seivan/6086183
@property(nonatomic,readonly) NSDecimalNumber  * SH_collectionAvg;
@property(nonatomic,readonly) NSDecimalNumber  * SH_collectionSum;
@property(nonatomic,readonly) id                 SH_collectionMax;
@property(nonatomic,readonly) id                 SH_collectionMin;
Tests added.
Bump version 1.1.0
Merge branch 'release/1.1.0' into develop