Rename App Methods

- renamed a lot of App methods to CamelCase
- replaced direct public variables with get-/set-Methods

src/Core/Worker.php

@@ -62,7 +62,7 @@ class Worker
 		}
 
 		// Do we have too few memory?
-		if ($a->min_memory_reached()) {
+		if ($a->isMinMemoryReached()) {
 			logger('Pre check: Memory limit reached, quitting.', LOGGER_DEBUG);
 			return;
 		}
@@ -122,7 +122,7 @@ class Worker
 				}
 
 				// Check free memory
-				if ($a->min_memory_reached()) {
+				if ($a->isMinMemoryReached()) {
 					logger('Memory limit reached, quitting.', LOGGER_DEBUG);
 					Lock::release('worker');
 					return;