Corona: Move HTML View functionality into a separate HTMLView class.
L10n: Rebase L10nView on top of HTMLView and rename to L10nHTMLView.
Core: Fix support for non-string, non-object constructor parameters.
Corona: Add possibility to get return code identifiers.
Corona: Adds a php session id exception
Corona: Don't use old Response object setters in FrontController.

Also fix a minor issue where we would return a random controller when
there is no default controller set.
Corona: Fix codestyle error.
L10n: Port GettextL10nProvider unit tests to LunrBaseTest.
L10n: Port L10n class unit tests to LunrBaseTest.
L10n: Port L10nHTMLView unit tests to LunrBaseTest.
L10n: Port L10nProvider unit tests to LunrBaseTest.
L10n: Port L10nTrait unit tests to LunrBaseTest.
L10n: Port PHPL10nProvider unit tests to LunrBaseTest.
Core: Restructure ConfigServiceLocator test statics.
Core: Restructure Configuration test statics.
Feedback: Restructure Feedback test statics.
Gravity: Don't use test statics from Feedback.
Gravity: Restructure Gravity test statics.
Surface: Restructure Surface test statics.
Vortex: Restructure Vortex test statics.