- Changed ::execute() parameter to match name defined in class interface.

- Improve PHPDocblock and type hinting.

 - $acceptContentType defined multiple times.

- Reduce method responsibility.

Inject configuration stop if from using GLOBALS that
prevent predictable execution and testability.

Merge branch '21-loading-static-page-like-https-marcus-test-uib-no-technology-html-fails-with-a-uncaught-typeerror' into 'master'

Resolve "Loading static page like https://marcus.test.uib.no/technology.html fails with a Uncaught TypeError"

Closes #21

See merge request !20

- Make little sense mixing parameter types. Makeing Utils::processDocument()
stricter allows us to pick up bugs like this.

Resolve "Refactor ServiceModule::checkComponents()"

Closes #20

See merge request !19

- Reduce complexity.

- Reduce complexity.

- Not safe to assume the values are identical.

Resolve "Remove all use of GLOBALS"

Closes #13

See merge request !18

Only Hangaa now get passed this. Not sure it even get used by Hangaa.

Deprecated in newer versions of PHP.

Method req. that loadspk settings get passed in but imminently overwrite all
values.

Method ::match() modify the class after it gets instantiated. This make
sure any changes to get used and passed on to any utility methods.

- Make sure Utils::queryFile called from Utils also pass in loadspk settings
since global call is removed.
- Improve ServiceModule guards. Make sure it correctly returns false early.

Loads, alter and use Endoint lobals. Makes the execution
graph and result unpredicable and untestable.

- Stop it from throwing warnings and notices all over the place.

Make class testable and predicable.

Protect against server/endpoint not responding.