[ENSCORESW-2541]. Completed tree search method. Added method to remove interval from tree.
[ENSCORESW-2541]. Completed tree search method. Added method to remove interval from tree.

Ensembl/ensembl,muffato/ensembl,james-monkeyshines/ensembl,Ensembl/ensembl,muffato/ensembl,muffato/ensembl,Ensembl/ensembl,Ensembl/ensembl,james-monkeyshines/ensembl,james-monkeyshines/ensembl,muffato/ensembl,james-monkeyshines/ensembl