VocabLib/include/VocabTree.h
* Changed type of counters from size_t to int.
* Conditioned accumulated data division as part of centroid computation only to the case it has at datapoints assigned to it.

VocabLib/tests/.gitignore
* Ignoring nn index produced as part of the AKMaj database test.

VocabLib/tests/Makefile
* Removing output files from tests on clean target.
test_nn_index.bin
* Not synchronizing anymore AKMaj db test output file.

.gitignore
* Rolled back previous commit since the file needs first to be deleted.
Ignored AKMaj db test output file