Fixes issue #271 (VCF files not removed from filesystem when user removes VCF)
Fixes issue #272 (VCF files cannot be loaded on newly initialized server)
(cherry picked from commit c65e9a4150718f9226862be28bf48d7ed644ea00)

Conflicts:
	MedSavantServerEngine/src/main/java/org/ut/biolab/medsavant/server/db/variants/VariantManager.java
Changed 'getName()' to 'getPath()' in VariantManager.java (finally block of removeVariants method) to reflect changes made to SimpleVariantFile in 1.2