Fixed issue #63
adding new gallery images

from Gomez et al
updated image
more images for the gallery
image thumbnails update
update of image
Fixed typo in bamCorrelate help message
Merge branch 'master' of https://github.com/fidelram/deepTools
Reorganized usage parameters
Merge branch 'master' of https://github.com/fidelram/deepTools into multiheatmapper