Initially added
Ignored 'build' directory
Reorganized sources tree: extracted headers to 'include/' subdir
Initially added Google Test as subdirectory
Fixed compile error in Google Test
Completed integration of Google Test framework
Merge branch 'feature/google-test' into develop
Renamed test_empty_iterator.cpp to test_null_iterator.cpp
Added tests on NullIterator
Added toVector function
"Improved toVector function"
Merge branch 'feature/null-iterator' into develop
Added 'Iterators::countValues(it)' to the utilities
Code cleanup: naming conventions, uniform initialization syntax etc.
Added tests to the single-value iterator
Added test on sequence iterator
Merge branch 'release/0.1'