CHANGES IN VERSION 1.2.0
------------------------

    o Renamed class TxVariants to SGVariants

    o Renamed class TxVariantCounts to SGVariantCounts

    o Renamed findTxVariants() to findSGVariants()

    o Renamed getTxVariantCounts() to getSGVariantCounts()

    o Parallelization is now controlled with a single cores argument

    o Argument max_complexity for predictTxFeatures() controls 
      skipping of problematic regions

    o getBamInfo() is no longer run as part of analyzeFeatures()

    o getSGVariantCounts() now supports obtaining counts from BAM files

    o Bug fixes and other improvements
