Improvements to VCF tables

- Added ability to load VCF metadata
- Added reference to platform

See FT-849 and FT-711
Use default sequence for de_variant_metadata pk
Clean from unused resources

- Maven
- makefile target for fetching transmart-data from github
Fix protein biomarker type capitalization
Merge branch 'master' into improvements/proteomics_to_postgres

Conflicts:
	ddl/postgres/deapp/dependencies.php
Merge branch 'improvements/proteomics_to_postgres' into origin/improvements/mirna_to_postgres
Add miRNA entries to correlation view