Updates and fixes docblock.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.1' into 2.2
Add Orchestra\Foundation\Installation\Installer::bootInstallerFiles()
for better handling.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.2'

Signed-off-by: crynobone <crynobone@gmail.com>

Conflicts:
	src/Foundation/Installation/Installer.php
	tests/Foundation/Installation/InstallerTest.php