Updates for latest data source release.

[jonn-smith]

• Released new data sources to google bucket and FTP site for both somatic and germline (clinical pipeline)
• Updated data source download URL to point to the bucket for v1.6.20190124
• Updated minimum version of data sources to v1.6.20190124.

With the release and these changes, the following issues are addressed:

Fixes #5259
Fixes #5428
Fixes #5429

[droazen]

👍 merge when tests pass

[codecov-io]

Codecov Report

Merging #5614 into master will increase coverage by 0.055%.
The diff coverage is 100%.

@@               Coverage Diff               @@
##              master     #5614       +/-   ##
===============================================
+ Coverage     87.037%   87.092%   +0.055%     
- Complexity     31537     31815      +278     
===============================================
  Files           1930      1930               
  Lines         145455    146209      +754     
  Branches       16090     16244      +154     
===============================================
+ Hits          126600    127337      +737     
- Misses         12996     12997        +1     
- Partials        5859      5875       +16

Impacted Files	Coverage Δ	Complexity Δ
.../tools/funcotator/dataSources/DataSourceUtils.java	64.041% <ø> (ø)	48 <0> (ø)	⬇️
...ols/funcotator/FuncotatorDataSourceDownloader.java	66.197% <100%> (ø)	14 <0> (ø)	⬇️
...bender/tools/copynumber/CallCopyRatioSegments.java	93.333% <0%> (-0.784%)	11% <0%> (+5%)
...lotypecaller/readthreading/ReadThreadingGraph.java	88.608% <0%> (-0.253%)	144% <0%> (-1%)
...llbender/tools/copynumber/PreprocessIntervals.java	100% <0%> (ø)	34% <0%> (+15%)	⬆️
...notyper/GenotypeCalculationArgumentCollection.java	100% <0%> (ø)	4% <0%> (+2%)	⬆️
...ls/copynumber/plotting/PlotDenoisedCopyRatios.java	100% <0%> (ø)	12% <0%> (+6%)	⬆️
...nder/utils/runtime/StreamingProcessController.java	67.773% <0%> (+0.474%)	33% <0%> (ø)	⬇️
...hellbender/tools/copynumber/AnnotateIntervals.java	98.246% <0%> (+0.627%)	23% <0%> (+11%)	⬆️
...transforms/markduplicates/MarkDuplicatesSpark.java	95.276% <0%> (+0.755%)	65% <0%> (+29%)	⬆️
... and 16 more