v0.0.15: made examples faster by including results in derfinder v0.0.54

$ time R --vanilla CMD build derfinderReport
real	3m49.912s
user	3m39.336s
sys	0m8.153s

$ time R --vanilla CMD check derfinderReport_0.0.15.tar.gz --no-build-vignettes
real	5m15.882s
user	5m2.878s
sys	0m10.668s

> BiocCheck("derfinderReport")
$considerations
[1] "Adding unit tests.\n  We strongly recommend them. See\n  http://www.bioconductor.org/developers/how-to/unitTesting-guidelines/."
[2] "Shortening lines; 24 lines (3%) are > 80 characters long."
[3] "Indenting lines with a multiple of 4 spaces; 64 lines (8%) are not."