added ignoreFirstRow support for CsvIterators
changed functionallity to use existing options
Merge pull request #3 from NicolaasVB/master

added ignoreFirstRow support for CsvIterators
Added option to specify encoding or file-csv-iterator
added source encoding option for filelineiterator
Merge pull request #4 from NicolaasVB/master

added source encoding option for filelineiterator
Added invoke and sum method to IterUtil
Added option to specifiy multiple headers
Added guzzle support
Fixed bug filecsviterator with empty columns
Fixed extra whitespace problem with headers csv iterator
Made pdo iterator more lazy