Changes in version 0.99.13                       

After official release. PCA function changed to avoid basilisk and
Pyhton.

                       Changes in version 0.99.12                       

Release before the official release of Bioc 3.15. Main changes:

  - The way in which the COEX matrix is estimated and stored is changed
    to occupy less space and run faster.

                       Changes in version 0.99.10                       

Initial Bioconductor release