config.master.php file update

- remove not used code
- reorder defines for possible clean up targets
- TARGET and HOST_NAME are set early
HOST NAME is set right at the top
TARGET is set after site configs is read
- add more $_ENV reads
DEFAULT_ACL_LEVEL
LOCALE (encoding is read from locale which should be in the format of nn_CT.ENCODING, eg en_US.UTF-8), falls back to UTF-8
ADMIN.STYLESHEET
ADMIN.JAVASCRIPT

www/configs/.target.example

@@ -0,0 +1,3 @@
+# target can be live, stage, test, dev
+# this overrides the SITE set "location" entry
+TARGET=