KMajorityLib/include/KMajority.h
* Initializing nearest neighbors index parameters with an empty
IndexParams object.

KMajorityLib/src/KMajority.cpp
* Fixed bug in createIndexByType function, changing values of params
object instead of inserting since when it already exists it is never
changed.

VocabLib/tests/VocabDB_test.cpp
* In HierarchicalKMajority database test, setting depth as 3 to achieve
1000 words instead of 4 as before when depth of tree first level was
zero.
* In ApproximateKMajority database test, passing custom algorithm
parameters to KMajority class constructor.