Added test_g2i_normalize
Introduce GENOTYPE_TEST_DATA environment variable and clean up tests
Merge pull request #188 from iainrb/devel

Ruby test updates
Rename zcall QC sim file, and ensure it is generated after sample filtering (if any)
Get test genotyping.db from GENOTYPE_TEST_DATA directory
Merge pull request #189 from iainrb/devel

Fixes to Ruby workflow tests
Merge pull request #191 from wtsi-npg/devel

Final changes for 1.2.0 release