first commit, midway
fixed with Rubocop
several small fixes, improved spec code, using let
fixed with Rubocop
broke TXTFile.process into smaller pieces, all with tests
finished TXTFile.make_ids and subfunctions, all tests passing
fixed variable names
partially functional, some bugs when exporting
rubocop fixes, small code improvements
fixed a bug where data were exported with IDs as an Array
small fixes
functional, still some bugs, fixed export problem
fixed compatibility problem with Ruby < 2.1
fully functional, but not fully tested
some help in Readme file