VERSION 0.99.7
----------------------
    - Main update: Re-formatted ranking databases. 
    They are now loaded from .feather files (and therefore, they are transposed: 
    motifs are stored as rows, and genes/regions as columns, 
    which allows to load only specific genes/regions)
    
VERSION 0.99.6
----------------------
    - Main update: Re-formatted annotation database. For easier subsetting.
    
VERSION 0.99.1
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    - Main update: New class for the Rankings (rankingRcisTarget)

VERSION 0.7
----------------------
    - Converted the ranking databases to an S4 class.

VERSION 0.6
----------------------
    - Added function addLogo()
    - AUC is now returned as a class


