rewrite i2b2_process_mrna_data using i2b2_load_samples
move Database & DatabaseType to sql package
add Sql helper methods
extract MetaInfo header to category for CsvLikeFile
pre-process stored procedure parameters (convert GString to String)
add VcfFile
add check by additional props for sample matcher
add study info to VCF sample mapping file
add samples loader
fix stored procedure logging
allow load samples without platform
Load samples for VCF
add i2b2_process_vcf_data stored procedure
add handful sql find method
add HasRecord matcher to check presence of record with specified attributes in database
add handful sql insertRecord method
Work with new levels supported in move_study script
Fix for move script
Delete study for postgresql
Update delete study test