Initial try to have load VCF data using make files.

Steps to load data will be split into a generic part
(parsing VCF) and a database specific part (loading
the parsed data).
Loading data into postgres database now works with makefile
Merge branch 'master' into features/loading_vcf_data
Merge remote-tracking branch 'origin/london_hackathon' into features/loading_vcf_data
Convert column to boolean type
Changes to VCF scripts to load data into oracle database
Improvements to the VCF load functionality
Added newlines at the end of files
Merge remote-tracking branch 'origin/london_hackathon' into features/loading_vcf_data
Improved makefile for fine-grained control of the VCF loading process.
ws
Merge pull request #18 from thehyve/features/loading_vcf_data

Scripts for loading VCF data
Merge pull request #11 from thehyve/london_hackathon

VCF improvements