Migrate PHP to PSR-4

[oparoz]

No description provided.

[codecov]

Codecov Report

Merging #252 into master will increase coverage by 0.12%.
The diff coverage is 33.33%.

@@             Coverage Diff              @@
##             master     #252      +/-   ##
============================================
+ Coverage     86.04%   86.16%   +0.12%     
+ Complexity      337      333       -4     
============================================
  Files            39       38       -1     
  Lines          1218     1207      -11     
============================================
- Hits           1048     1040       -8     
+ Misses          170      167       -3

Impacted Files	Coverage Δ	Complexity Δ
lib/Service/SearchFolderService.php	100% <ø> (ø)	8 <0> (?)
lib/Controller/FilesPublicController.php	100% <ø> (ø)	2 <0> (?)
lib/Middleware/CheckException.php	100% <ø> (ø)	1 <0> (?)
lib/Controller/ConfigController.php	100% <ø> (ø)	3 <0> (?)
lib/Middleware/EnvCheckMiddleware.php	93.54% <ø> (ø)	24 <0> (?)
lib/Environment/Environment.php	95.55% <ø> (ø)	28 <0> (?)
lib/Controller/PreviewPublicController.php	100% <ø> (ø)	2 <0> (?)
lib/Service/ThumbnailService.php	0% <ø> (ø)	2 <0> (?)
lib/Controller/PageController.php	100% <ø> (ø)	12 <0> (?)
lib/Controller/FilesApiController.php	100% <ø> (ø)	6 <0> (?)
... and 28 more

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[rullzer]

Whoohoo! 🎈