Secmotic fiQare PR

[fiqare-secmotic]

This pull request contains improvements made by the Secmotic team for iotagent-ul. These improvements are part of the fiQare project, which is based on ISO 25010 to improve software quality. More info: https://fiqare.eu/

1. Swagger is provided for HTTP protocol in:
   <server_host>:7896/api-docs

• Note: npm install is needed

2. There are four rules:

   Rule 1: Variables should not be shadowed
   Rule 2: Unused function parameters should be removed
   Rule 3: Function parameters, caught exceptions and foreach variables should not be reassigned
   Rule 4: if.. else if constructs should end with else clauses

All test in Travis has been passed successfully and the coverage in Coveralls remains the same.

• Travis CI: https://travis-ci.org/fiqare-secmotic/iotagent-ul/builds/614972132
• Coveralls: https://coveralls.io/github/fiqare-secmotic/iotagent-ul?branch=secmotic_fiQare_swagger

[fgalan]

Thanks you very much for your contribution!

Please have a look to the comments provided in telefonicaid/perseo-fe#416 (when applicable).

[fgalan]

Continues in PR #411 y PR #412