Adjusted scaling policies thresholds. We can't hit 100% cpu utilizati…

…on in Clifton, so the thresholds need to be lower than before. (#41)

Also increased the max_requests parameter in php-fpm, which defines the number of requests a child process serves before it gets killed. This alleviates the overhead of recreating process and shouldn't make memory leaks a problem

project.json

@@ -33,7 +33,7 @@
             "fpm.start_servers": 32,
             "fpm.min_spare_servers": 16,
             "fpm.max_spare_servers": 48,
-            "fpm.max_requests": 50,
+            "fpm.max_requests": 500,
 
             "nginx.worker_processes": 4,
             "nginx.worker_connections": 1024