Changes in version 0.99.0 (2019-10-11)
+ Submitted to Bioconductor

Changes in version 1.1.1 (2019-01-26)
+ added Modstrings and Structstrings dependency
+ depending on the database selected the tRNA sequences will be returned as DNAStringSet or ModRNAStringSet
+ now uses the DotBracketStringSet from the Structstrings package to store the structure information

Changes in version 1.5 (2020-02-05)
+ import of RNA sequences now disregards the insertion character "_"
+ added tRNAdb_reference and tRNAdb_pmid columns to output
