MinMaxRealType: Renamed to MinMaxRT
Sum: Added Sum Interfaces and implementations for RT
Moments: Added interfaces and implemenations
Size/Area: Added interfaces and implemenations
Min and Max: Added interfaces and implementations in RT
Variance: Added interfaces and implementations in RT
StdDev: Added interfaces and rt implemenations
LocalMean: Added final modifier in signature
MinRT: Added minimum realtype implementation
Median: Added median interfaces and implementation
Mean: Added interfaces and implementations
Kurtosis: Added interfaces and implementations
Added AbstractFunctionRT2RT
Renamed MinMaxRT2RT to MinMaxRT
Merge branch 'master' into firstorderstatistics

Conflicts:
	src/test/java/imagej/ops/project/ProjectTest.java
MedianRT: Added median implementation (rt)