Removed: usage of Exception to detect if setup wizard is to be launched

An InvalidArgumentException might be used inside the loader, this is not
an efficient way to know whether the setup wizard is to be launched or
not.

In case of config file corruption, the setup wizard might also be shown
since an InvalidArgumentException could be raised.
Merge pull request #54 from patrickallaert/RemoveExceptionForSetupDetection

Removed: usage of Exception to detect if setup wizard is to be launched
Fix for EZP-20877 - PHP Warning: The use statement with non-compound name 'RuntimeException' when run assets_install
Merge pull request #56 from pedroresende/EZP20877

Fix for EZP-20877 - PHP Warning: The use statement with non-compound name 'RuntimeException' when run assets_install
Fix EZP-20877: Remove useless use stament causing PHP warning

Regression from #54, workaround pulled in in #56.
Update dependencies & change to use assetic 1.1 stable
Merge pull request #57 from ezsystems/update_deps_assetic_stable

Update dependencies & change to use assetic 1.1 stable
Update assetic-bundle to version 2.3.* to fix "Assetic\AssetWriter::getCombinations() does not exist"

Ref: https://github.com/symfony/AsseticBundle/issues/194
Fix eZP CP mistake, format & missing note on SetupWizard+upgrade
Update versions in composer.json
Add dependency on ezpublish legacy, now that we have an installer
forgot to add config for where to store ezp-legacy
Merge pull request #59 from gggeek/EZP-19760

Add dependency on ezpublish legacy, now that we have an installer
Removed version from composer.json
Update composer.lock
Removed ezsystems/ezpublish-legacy from composer.json and updated dependencies
Fix an oversight in the getting started file
Update GETTING_STARTED.md
Merge pull request #61 from Plopix/fix-doc-getting-started

Fix an oversight in the getting started file