[TASK] Remove clearing of files belonging to Flux's old autoloader
[TASK] Completely stop drawing preview when Provider says so
[TASK] Move a thrown Exception to point where class is used
[TASK] Make Flux a top priority extension
[TASK] Enclose core registrations with class check

Although this might be temporary, it prevents a certain case of installing on 6.2 when Flux has never been installed before, which causes a "class not found" for FluidTYPO3\Flux\Core - this initial, cheap check prevents that horrible error by only performing registration once the class has been properly autoloader - which will happen when it gets checked if it exists, making it available on the very next page load.
[TASK] Remove test mocks dealing with removed autoload feature
[TASK] Update Travis build script
[TASK] Fix some failing tests
[TASK] Move field tests into place according to namespace
[TASK] Remove functional tests and unused template fixtures
[TASK] Adjust a few failing tests
[TASK] Include TYPO3 6.0 in build config
Merge pull request #400 from NamelessCoder/preventions

[TASK] A few error prevention measures