Utilities for manipulating chromosome names, including modifying
them to follow a particular naming style
Contains data and functions that
	define and allow translation between different chromosome
	sequence naming conventions (e.g., "chr1" versus "1"),
	including a function that attempts to place sequence names in
	their natural, rather than lexicographic, order.
Sonali Arora, Martin Morgan, Marc Carlson, H. Pagès
stats, stats4, utils, RCurl, GenomeInfoDbData
GenomicRanges, Rsamtools, GenomicAlignments, GenomicFeatures,
TxDb.Dmelanogaster.UCSC.dm3.ensGene, BSgenome,
BSgenome.Scerevisiae.UCSC.sacCer2, BSgenome.Celegans.UCSC.ce2,
BSgenome.Hsapiens.NCBI.GRCh38, RUnit, BiocStyle, knitr
utils.R rankSeqlevels.R NCBI-utils.R UCSC-utils.R
Ensembl-utils.R getChromInfoFromNCBI.R getChromInfoFromUCSC.R
getChromInfoFromEnsembl.R loadTaxonomyDb.R
fetchExtendedChromInfoFromUCSC.R seqinfo.R seqlevelsStyle.R
seqlevels-wrappers.R Seqinfo-class.R GenomeDescription-class.R
mapGenomeBuilds.R zzz.R