update 014_data.t to match previous change in VEP error msg * document Log::Report issue with D1 & D2 version

moved app messaging to Log::Report; validation of vep data before updating db tables; tests scripts test data insert to sqlite in-memory db; switched off console output of vep data structures for devel; trialing optional bootstrap 3.3.6 css

extended download function to sample data, split existing vep & non-cds downloads into separate files; moved update_vep_table() function into new save_data() method

moved all db queries to NGS::DB; added download facility for processed data; new MySQL ngs db for download data

moved NGS::Test function to NGS::Test::Common & moved test-lib.pl functions to NGS::Test, removed all calls to test-lib.pl from tests