IGV-1932 Cannot change name of junction track (junctions.bed) via track line
IGV-1932 Recognize junctino file by filename extension
IGV-1940  Coverage track height is immutable
Fix unit test file
IGV-1934  Flag insertions larger than user-defined threshold
TribbleFeatureSource - test for file closing
IGV-1927 Tribble CloseableIterators are not being closed
Move tests for file handle leak.
Disabled problematic test
Disabled test (data file no longer exists)
Enable "Exome" button for non-production builds