Tests changed to also support the return of the path
Changes made to return the path. All tests passed.
Test created for the function that will receive the vehicle autonomy and the fuel price and will return cost of the trip and the smallest path.
Calculation of the price implemented. All tests passed.
Added some more tests. All passed.
Added test to assert the creation of a Map with a JSON as parameter (REST WebService).
Tests updated to include assert_diferente for Map and Route.
Test updated to support the use of nested forms gem.