CDB-1516 Modified CSV delimiter separator to use a sample variance check for better detection of delimiter + adapted tests to changes
CDB-1516: Improved tests for CSV import + added new one for delimiter detection
CSV tests stuff
CDB-1516 Race condition on CSVs being initially detected as having a single line of data.
Now using sample variance if > 1 data rows, else basic weigthed delimiter count detection
CDB-1516 Improved CSV detection algorithm due to another race condition with line breaks
CDB-1516 removal of debugger test
CDB-1516 Modified CSV delimiter separator to use a sample variance check for better detection of delimiter + adapted tests to changes
CDB-1516: Improved tests for CSV import + added new one for delimiter detection
CSV tests stuff
CDB-1516 Race condition on CSVs being initially detected as having a single line of data.
Now using sample variance if > 1 data rows, else basic weigthed delimiter count detection
CDB-1516 Improved CSV detection algorithm due to another race condition with line breaks
CDB-1516 removal of debugger test
Merge branch 'CDB-1516' of https://github.com/CartoDB/cartodb into CDB-1516

Conflicts:
	services/importer/lib/importer/csv_normalizer.rb
Merge remote-tracking branch 'origin/CDB-1516'