Fix Maven build to use JARs from public repositories;  use explicit imports in problem test
Pointless formatting change to trigger rebuild
Made CategoryEncoder.builder() concrete, as in other encoders.
Fix for #86. Added MultiEncoder>
Merge changes for Kirill Solovyevk
Added test algorithms package, new CLAClassifierTest (beginning), new Deque class
Make Deque implement Iterable
finish most of classifier test
Completed CLAClassifier and test, fixed serialization, updated gradle and maven, added ClassifierResult class
Added SpatialPoolerExample.
Setting SynPermTrimThreshold in SpartialPoolerTest.