Added method bounds and fixed a bug in interval_symbols
Fixed a bug in interval_symbols
Added tests for inverse_select, interval_symbols and bounds
Added bidirectional-search
Added a HuTucker-Shaped Wavelet Tree
Added wt_hutu to the tests
Enabled bidirectional search for HuTucker-Shaped Wavelet Tree
Fixed formatting
Fixed formatting
Fixed formatting
Fixed formatting
Fixed formatting
Asserts included
Asserts inserted
Asserts inserted
Fixed compile error
Fixed comments
Minor changes according to discussion with Simon
Minor changes
Removed tabs