src: move all files (again)

Make "src" the implicit "/usr/local" so that nobody can
sneak in weird files in the base file system or potentially
overwrite them.

This is the last time, I swear...  :)

Makefile

@@ -1,27 +1,27 @@
 all:
 
 mount:
-	mount_unionfs ${.CURDIR}/usr/local /usr/local
+	mount_unionfs ${.CURDIR}/src /usr/local
 
 umount:
-	umount -f "<above>:${.CURDIR}/usr/local"
+	umount -f "<above>:${.CURDIR}/src"
 
 install:
 	mkdir -p ${DESTDIR}/usr/local
-	cp -r ${.CURDIR}/usr/local/* ${DESTDIR}/usr/local
+	cp -r ${.CURDIR}/src/* ${DESTDIR}/usr/local
 
 lint:
-	find ${.CURDIR}/usr/local -name "*.class" -print0 | xargs -0 -n1 php -l
-	find ${.CURDIR}/usr/local -name "*.inc" -print0 | xargs -0 -n1 php -l
-	find ${.CURDIR}/usr/local -name "*.php" -print0 | xargs -0 -n1 php -l
+	find ${.CURDIR}/src -name "*.class" -print0 | xargs -0 -n1 php -l
+	find ${.CURDIR}/src -name "*.inc" -print0 | xargs -0 -n1 php -l
+	find ${.CURDIR}/src -name "*.php" -print0 | xargs -0 -n1 php -l
 
 sweep:
-	find ${.CURDIR}/usr/local ! -name "*.min.*" \
+	find ${.CURDIR}/src ! -name "*.min.*" \
 	    ! -name "*.map" -type f -print0 | \
 	    xargs -0 -n1 scripts/cleanfile
 
 setup:
-	${.CURDIR}/usr/local/etc/rc.php_ini_setup
+	${.CURDIR}/src/etc/rc.php_ini_setup
 
 clean:
 	git reset --hard HEAD && git clean -xdqf .