[ticket/275] Fix incorrect copyrights in portal files

B3P-275
Merge pull request #276 from marc1706/ticket/275

[ticket/275] Fix incorrect copyrights in portal files
[ticket/277] Add tests for functions_modules.php

B3P-277
Merge pull request #278 from marc1706/ticket/277

[ticket/277] Add tests for functions_modules.php
[ticket/279] Exclude language files from coverage reports

B3P-279
Merge pull request #280 from marc1706/ticket/279

[ticket/279] Exclude language files from coverage reports