#205 Updating from 4.x to 5.x breaks

[Lingchao Chen]

When I try to upgrade opencsv from 4.x to 5.x. The following code breaks.

CSVReader rer = new CSVReader(new FileReader("/test.csv"), ',');

The code should pass, but it throws an error:

no suitable constructor found for CSVReader(java.io.FileReader,char)

[Andrew Rucker Jones]

From the release notes: "All non-essential constructors […] have been removed. Please use the builder classes instead."