Added a simple parser of the input data file.
Reverted changes to app.js to use tests instead.
Created options to better call the parse logic for the input TSV file.
Fixed callback signatures to match expected in code documentation.
Added some logic to the calling of suggestions from app.js
Removed test for parse given recent changes to src/parse.js. Fixed unit test in suggestions to use test on the regular expression, not on the string.
Finished (working) prototype. Need to tidy things up and find a solution to search strings (such as for equivalents to French-specific characters. Smaller functions, unit tests, and review performance, readability and maintenance of the code.