Issue/210: Rota para pesquisa de localidade

See merge request !31

Related: simcaq/SCRUM#210 !31

Related: simcaq/SCRUM#210

Related: simcaq/SCRUM#210

This adds the option to have values accepted only by one parameter, instead of
globals, like it was then

Auth

See merge request !30

Feature param query builder

See merge request !29

# Conflicts:
#   gulpfile.babel.js

# Conflicts:
#   src/libs/routes/city.js
#   src/libs/routes/enrollment.js
#   src/libs/routes/school.js

Implement UC201 - Select Location

Closes SCRUM#71

See merge request !27

Conflicts:
  gulpfile.babel.js

Merge branch '71-simcaq-implementar-backend-uc201-selecionar-localidade' into feature_param_query_builder

Conflicts:
	src/libs/routes/city.js
	src/libs/routes/enrollment.js
	src/libs/routes/region.js
	src/libs/routes/school.js
	src/libs/routes/state.js
	src/test/simulation.js

It uses a object to set the url fields accepted and it's values, parse the
fields and build the query with the values automagically

SQL now is using new schema

Add lodash to use with arrays and collections

SQL is now compatible with DB schema in simcaqdb3

Merge branch 'fix_database_error_reporting' into 71-simcaq-implementar-backend-uc201-selecionar-localidade

Fix error handling in the database query module

Changes in this merge request
* Add proper error handling in libs/db/query_exec. Uses a catch function after each then to proper capture database errors and report them to the user.
* Add logging the error stack when a database query error occurs.
* Change error message reported in the response when a database query occurs, because the user making the request does not need to know about an internal database error.

See merge request !28